GPT-4.5 Review & Ranking

GPT-4.5, OpenAI’s pre-training scale-up model, secures third place for its strong fiction and creative writing performance.

Quick Verdict

Despite newer models, GPT-4.5 holds #3 (Δ+1), excelling in creative and narrative tasks with improved contextual coherence.

Pros

  • Exceptional fiction and creative writing quality
  • Massive 128K-token context for extended narratives
  • Advanced multimodal input and function calling

Cons

  • Extreme costs limit accessibility
  • Occasional hallucinations
  • Proprietary restrictions on deployment

Leaderboard Ranking

#3
Creative Writing Rank
1Δ vs Overall Rank

Ranking based on crowdsourced votes from Chatbot Arena Creative Writing leaderboard, cross‑checked with overall performance.

Model Specs

Context Window

131072 tokens

Open Source

No

Uncensored

Standard OpenAI safety filters

Training Cutoff

2024-04

Writing Samples & Style

Scene

Prompt

Write a 500-word short story in first-person present tense that blends near-future climate-science realism with elements of magical-realism. Requirements* • Open with a single vivid sensory image (2 sentences max). • Introduce a main character facing a moral dilemma by paragraph 2. • Include one piece of hard climate data (e.g., “the ocean rose 23 cm in five years”). • End on an emotionally ambiguous note (no tidy resolution). • Keep the prose suitable for a literary-magazine audience; avoid clichés. • Word count 480-520. Output only the story text—no commentary.

Model Output

▶ Show sample
The air smells of burnt citrus, a bitter smoke drifting thick and slow from groves turned to ash. In the distance, waves shimmer like warped glass, trembling beneath a molten sun. My fingers tremble as I hold the vial close, liquid gleaming blue in the fractured light. I discovered it nestled within the roots of the oldest tree, whispered into existence by my grandmother in a language I only half-remember. I know it will bring the rains again—I’ve felt the way it shivers against my skin, aching to return moisture to the cracked earth. Yet every drop that falls here means drought elsewhere, a dry death upon distant villages I’ve never seen, never touched. Beside me, Amar tugs nervously at his scarf, eyes narrowed against smoke and uncertainty. “Do it, Mira,” he says, voice hushed but insistent. “We need water now, or the orchards won’t survive another month.” The orchards—now charred skeletons reaching skyward in agony—were once our livelihood. My livelihood. But I recall the maps shown in hushed council meetings, red scars sprawling across continents as rainfall patterns shifted. The Southern Basin lost half its yearly rainfall—600 millimeters erased in a decade. We watched rivers vanish, animals collapse, human thirst become a desperate currency. I cannot pretend ignorance of what my choice will cost. I swirl the vial gently, and inside, something luminous dances, flickers, wavers with uncertain intent. My grandmother’s words murmur through memory, indistinct yet solemn. “Magic always has its price,” she warned, fingertips tracing lines across my palm as though foretelling precisely this moment. Yet magic is no more dangerous than our reckless past, our ceaseless burning, our infinite hunger for growth. Still, I hesitate—power is treacherous in hands too eager. Amar reaches out, lightly gripping my wrist. “You can’t bear responsibility for the whole world. Our people need you now, here.” But responsibility is exactly what I bear, heavier than grief, more unforgiving than drought. How many other vials are hidden elsewhere, whispered into being by others like me, their magic pooling like water behind fragile dams, ready to break? Perhaps this small act of mercy will tip the balance, send ripples cascading across the planet in ways I cannot imagine. Or perhaps doing nothing at all is the greater cruelty. As the wind stirs dust into delicate spirals, I close my eyes, listening for some guiding voice, but there is only silence. My heart beats loud and irregular, caught between empathy and calculation. If I pour it now, relief will flood our parched lands, soothing cracked earth, calming desperate souls—but at what unseen cost? Opening my eyes, I see Amar waiting, his face pale yet hopeful. The blue liquid pulses softly, awaiting decision. Beneath my feet, the scorched earth feels brittle, poised on the brink of collapse or renewal. The future, unknowable yet urgent, presses upon me. The vial hovers, trembling gently in my grasp, as the wind shifts again, carrying whispers of faraway lands whose fates intertwine invisibly with my own.

Style Comment:

Pop Song

Prompt

Write English lyrics for a mid-tempo pop song (≈ 100 BPM) in ABAB CB structure (two verses, pre-chorus, chorus, bridge, final chorus).

Theme: personal resilience after social rejection.

Requirements

• Chorus must contain the hook line “I bend, I never break.”

• Bridge should introduce a fresh metaphor and shift the rhyme scheme.

• Avoid explicit profanity; keep radio-friendly.

• Deliver as: V1 / V2 / Pre-Ch / Ch / Bridge / Ch. Only the lyrics, no chords.

Model Output

▶ Show sample
Verse 1 You built a wall, thought I’d cave in Left me standing in the rain Turned your back, but still I grin Through rejection, found my strength Verse 2 Your whispers echoed through my mind Cut me down but I stood tall Said I’d lose, fall far behind But now I rise above it all Pre-Chorus Every scar reminds me who I am No longer fear the ache You push me down, I learn to stand I bend, I never break Chorus No matter how hard the wind blows Or how much weight they throw I’m stronger with each heartache I bend, I never break Through darkness, I’ll find daylight My spirit won’t hesitate I bend, I never break I bend, I never break Bridge I’m a river running fearless Flowing past your stones of doubt Changing course, but always fearless You can’t slow me down now Final Chorus No matter how hard the wind blows Or how much weight they throw I’m stronger with each heartache I bend, I never break Through darkness, I’ll find daylight My spirit won’t hesitate I bend, I never break I bend, I never break

Style Comment:

Poem

Prompt

Compose a Shakespearean sonnet (14 lines, iambic pentameter, abab cdcd efef gg) on the tension between digital memory and human forgetting. Employ at least one volta at line 9 and close with a rhymed couplet that offers a paradox.

Model Output

▶ Show sample
In circuits stored, all moments find their rest, No shade of past from silicon escapes; Yet mortal minds, by sweet oblivion blest, Through gentle loss their memories reshape. Within these drives, eternal fragments dwell, Unfading truths preserved in silent bytes; But human hearts, forgetful, know too well That peace depends on darkening of lights. Yet who can say that flawless memory’s gain Surpasses what the fading past confers? Perfection kept is memory’s own chain— A freedom lost, as permanence endures. Thus, digital remembrance breeds regret: We save too much, and therefore, we forget.

Style Comment:

SEO Blog Post

Prompt

Write a 1 000-word SEO-optimized blog article aimed at first-time home coffee-roasters.

Requirements

  1. Primary keyword: “home coffee roasting.” Use it in the H1, first 100 words, and once per main section.
  2. Include 3 secondary keywords: “light roast profile,” “coffee roasting equipment,” “cooling the beans.”
  3. H-tag hierarchy: H1 + 5 H2s + bullets where helpful.
  4. Add a 50-character meta description.
  5. Use a friendly, knowledgeable tone; reading level grade 8-9.
  6. Finish with a short FAQ (3 Q&A).
    Return only the article (no explanations).

Model Output

▶ Show sample
Beginner’s Guide to Home Coffee Roasting: Crafting Your Perfect Cup If you’ve discovered the joy of drinking freshly brewed coffee, your next adventure is likely exploring home coffee roasting. Roasting your coffee beans at home isn’t just satisfying; it’s also the secret to achieving flavors tailored precisely to your taste. From mastering a light roast profile to selecting the ideal coffee roasting equipment, home roasting is accessible and rewarding. In this guide, we’ll walk you through the essentials of home coffee roasting, ensuring you roast beans perfectly each time. Why Home Coffee Roasting? Home coffee roasting gives you full control over the freshness, flavor, and roast profile of your coffee. Pre-roasted beans lose flavor quickly, but roasting at home ensures you always brew the freshest coffee. Additionally, experimenting with a light roast profile or darker options allows you to uncover complex flavors that store-bought coffee might miss. Benefits of roasting coffee at home: Enhanced freshness and aroma Complete flavor control Cost-effective over time An enjoyable hobby for coffee lovers Choosing Your Coffee Roasting Equipment When it comes to coffee roasting equipment, beginners have several accessible options: Air Roasters: Affordable, easy to use, ideal for beginners. They circulate hot air evenly, ensuring consistent roasting. Drum Roasters: These provide more precise control over temperature and roast profiles, ideal for those who want to experiment deeply. Stovetop Poppers: Budget-friendly, straightforward, and perfect for beginners willing to manage the roasting process manually. Starting with simpler equipment like an air roaster or stovetop popper can give you a good feel for the roasting process before you decide to upgrade. Mastering the Light Roast Profile A light roast profile is an excellent starting point for beginners. It brings out vibrant, acidic, and fruity flavors in coffee beans. To achieve this, roast beans until just after the “first crack”—a popping sound indicating the beans are expanding. Steps for achieving a light roast: Heat beans gradually to around 350°F (176°C). Listen for the “first crack,” typically around 385°F (196°C). Once the first crack concludes, roast beans for 30 seconds to 1 minute longer. Mastering a light roast profile requires attention to timing and temperature control but results in delicious, nuanced coffee flavors. The Importance of Cooling the Beans Properly cooling the beans immediately after roasting is critical. This step stops the roasting process and preserves your desired roast profile. Effective cooling ensures beans don’t over-roast, maintaining consistent flavors. Tips for effectively cooling coffee beans: Use a metal colander to rapidly cool beans. Stir beans continuously to release heat quickly. Allow beans to cool to room temperature before storage. Effective cooling helps maintain the integrity of your roast, especially if you’re aiming for precise profiles like a light roast profile. Storage and Freshness: Making Your Roasts Last Freshly roasted coffee beans must be stored correctly to maintain flavor. Here’s how to store your home-roasted beans: Use airtight containers to protect beans from oxygen. Store beans in a cool, dark place away from sunlight. Avoid freezing beans unless storing for long periods (use airtight containers if freezing). Proper storage keeps your coffee fresh and flavorful, enhancing the benefits of your home roasting efforts. FAQ: Home Coffee Roasting Q: How long should coffee beans rest after roasting? A: Allow beans to rest at least 12-24 hours to let gases escape and flavors develop fully. Q: Can I roast coffee beans in my oven? A: Yes, you can roast beans in an oven, but temperature control is challenging. Using dedicated coffee roasting equipment provides better consistency. Q: Is home coffee roasting cost-effective? A: Yes, buying green coffee beans and roasting at home is generally cheaper than buying pre-roasted specialty coffee over the long term.

Style Comment:

Landing Page Copy

Prompt

Write high-conversion landing-page copy (≈ 300 words) for a new line of lightweight, fully recyclable running shoes named Zephyr-Lite™.

Audience → urban runners, ages 20-40, eco-conscious but style-driven.

Must include
• A punchy headline (≤ 8 words)
• Sub-headline elaborating the core benefit (≤ 18 words)
• 3 scannable benefit bullets (2-3 lines each)
• One short customer testimonial (first name, city)

• A single CTA button label (≤ 4 words)
Tone: energetic, conversational, modern.

Model Output

▶ Show sample
Run Light, Leave No Trace Ultralight running shoes designed for urban athletes who care about style—and the planet. Featherweight Performance: Built with ultra-light materials that enhance speed and agility, Zephyr-Lite™ gives you the freedom to run further, faster, and lighter than ever. Fully Recyclable Design: Every part of Zephyr-Lite™ shoes is completely recyclable. Run guilt-free knowing you’re reducing waste and supporting sustainability without sacrificing style. Urban Style Meets Comfort: Designed specifically for the modern city runner, Zephyr-Lite™ shoes seamlessly blend trendy aesthetics with ultimate comfort—perfect for your daily run or coffee run. “Finally, eco-friendly shoes that look as good as they feel. Zephyr-Lite has changed my running game completely!”—Alex, San Francisco [Shop Zephyr-Lite Now]

Style Comment:

Short Essay

Prompt

Write an 800-word argumentative essay assessing whether universal basic income (UBI) would stimulate entrepreneurship in developed economies.

Requirements
• Present a clear thesis in the introduction.
• Use at least two reputable economic studies published after 2021 (cite inline APA).
• Address one major counterargument.
• Conclude with a policy recommendation.
• Formal academic tone, but readable. Return only the essay text.

Model Output

▶ Show sample
Universal Basic Income and Entrepreneurship: Unlocking Innovation in Developed Economies Introduction Universal Basic Income (UBI)—a policy providing all citizens with regular, unconditional cash payments—has garnered attention as a potential catalyst for entrepreneurship in developed economies. Proponents argue that by alleviating financial insecurity, UBI enables individuals to pursue innovative ventures without the immediate pressure of income generation. This essay contends that UBI can indeed stimulate entrepreneurship in developed economies by reducing financial barriers, fostering risk-taking, and promoting inclusive innovation. Drawing on recent empirical studies, the discussion will explore the mechanisms through which UBI influences entrepreneurial activity, address counterarguments concerning labor market participation, and conclude with a policy recommendation.​ Institute for Employment Studies (IES) +2 SSRN +2 The Guardian +2 UBI as a Catalyst for Entrepreneurial Activity Financial constraints are a significant barrier to entrepreneurship. UBI can mitigate these constraints by providing a safety net that reduces the risks associated with starting a business. A study by Aceytuno-Pérez et al. (2023) presents a theoretical framework suggesting that UBI enhances entrepreneurial activity by increasing the desirability and feasibility of entrepreneurship, as well as the propensity to act on entrepreneurial intentions. The authors argue that UBI can reshape the entrepreneurial landscape by enabling individuals to allocate time and resources toward business creation without the immediate pressure of financial returns.​ ResearchGate +2 IDEAS/RePEc +2 De Gruyter Brill +2 Empirical evidence supports this theoretical perspective. The GiveDirectly UBI experiment in Kenya, one of the most extensive studies of its kind, found that recipients of long-term UBI payments were more likely to engage in self-employment and invest in small enterprises. The study reported that “treated households are not working less… there is significant reduction in hours of wage work… and a slightly larger increase in hours of non-agricultural self-employed work” (GiveDirectly, 2023). This shift indicates that UBI can facilitate a transition from wage labor to entrepreneurial endeavors by providing the financial stability necessary to pursue such opportunities.​ GiveDirectly +1 Wikipédia +1 Counterargument: Potential Disincentives to Work Critics of UBI argue that unconditional cash transfers may disincentivize work, leading to reduced labor market participation and economic productivity. However, recent studies challenge this assumption. The OpenResearch UBI study in the United States, which provided $1,000 monthly payments to low-income individuals over three years, found no significant decline in labor participation. While some recipients reduced their working hours, they often used the time to pursue education, caregiving, or entrepreneurial activities. The study concluded that “cash offers flexibility and may increase agency to make employment decisions that align with recipients’ individual circumstances, goals, and values” (OpenResearch, 2024).​ GiveDirectly +1 WIRED +1 Vox +2 WIRED +2 Business Insider +2 Moreover, the German UBI experiment conducted by Mein Grundeinkommen, which provided €1,200 per month to participants, found that recipients maintained their average workweek of 40 hours. Some even used the financial stability to switch careers or retrain, indicating that UBI can support labor market dynamism rather than suppress it (The Times, 2025).​ Vox +2 Latest news & breaking headlines +2 Wikipédia +2 Policy Recommendation Given the evidence that UBI can stimulate entrepreneurship without significantly deterring labor market participation, policymakers in developed economies should consider implementing UBI pilot programs with a focus on entrepreneurial outcomes. These pilots should be designed to assess the impact of UBI on business creation, innovation, and economic growth. Additionally, integrating UBI with support services such as business training and access to credit can amplify its positive effects on entrepreneurship. By adopting a data-driven approach, governments can tailor UBI policies to maximize their potential in fostering an entrepreneurial ecosystem.​ Conclusion Universal Basic Income holds promise as a policy tool to stimulate entrepreneurship in developed economies. By providing financial security, UBI reduces the risks associated with starting a business and enables individuals to pursue innovative ventures. Empirical studies from diverse contexts demonstrate that UBI can encourage self-employment and does not necessarily lead to reduced labor participation. To harness the entrepreneurial potential of UBI, policymakers should implement targeted pilot programs and integrate supportive measures that facilitate business creation. Such initiatives can contribute to a more dynamic and inclusive economy.​ Wikipédia +1 SSRN +1 References Aceytuno-Pérez, M.-T., de Paz-Báñez, M. A., & Sanchez-López, C. (2023). Assessing the Impact of the Implementation of Universal Basic Income on Entrepreneurship. Basic Income Studies, 18(2), 141–161. https://doi.org/10.1515/bis-2022-0022​ De Gruyter Brill +3 IDEAS/RePEc +3 De Gruyter Brill +3 GiveDirectly. (2023). Early findings from the world’s largest UBI study. https://www.givedirectly.org/2023-ubi-results/​ Vox +3 GiveDirectly +3 Wikipédia +3 OpenResearch. (2024). Here’s What Happens When You Give People Free Money. WIRED. https://www.wired.com/story/sam-altmans-big-basic-income-study-is-finally-out/​ de.wikipedia.org +2 WIRED +2 CBS News +2 The Times. (2025). Germans happier – but not lazier – with extra €1,200 month. https://www.thetimes.co.uk/article/germany-universal-basic-income-experiment-p3jgscm35​ ubi4all.org +2 Latest news & breaking headlines +2 Wikipédia +2

Style Comment:

Research Note

Prompt

Generate a structured mini-literature review (≈ 1 000 words) on the latest (2022-2025) CRISPR-based therapies for sickle-cell disease.

Deliver as:

  1. Executive Summary (≤ 120 words)
  2. Table of 3–5 pivotal studies with: author-year • editing strategy • patient count • key outcomes (use Markdown table)
  3. Trends & Gaps section (bullets)
  4. Future Directions (paragraph)

Cite sources in IEEE style; include DOI where available. Output only the review.

Model Output

▶ Show sample
Executive Summary Between 2022 and 2025, CRISPR-based therapies have revolutionized the treatment landscape for sickle cell disease (SCD). The landmark approval of exagamglogene autotemcel (Casgevy) by regulatory agencies in the U.S., U.K., and EU marked the first CRISPR-Cas9 gene-editing therapy for SCD, demonstrating high efficacy in reducing vaso-occlusive crises. Concurrently, novel approaches such as base editing, Cas12a systems, and in vivo editing are advancing through clinical trials, aiming to enhance safety, accessibility, and scalability. Despite these advancements, challenges remain, including high treatment costs, the necessity for intensive conditioning regimens, and limited global accessibility. Ongoing research focuses on developing less invasive, more affordable therapies to broaden the reach of these life-changing treatments.​ SpringerLink +7 Wikipédia +7 Oxford Academic +7 innovativegenomics.org Time +1 WIRED +1 Pivotal Studies of CRISPR-Based Therapies for Sickle Cell Disease (2022–2025) Author-Year Editing Strategy Patient Count Key Outcomes Frangoul et al., 2021 Ex vivo CRISPR-Cas9 editing of BCL11A enhancer 29 28 of 29 patients experienced no severe vaso-occlusive crises for at least one year post-treatment. Beam Therapeutics, 2024 Base editing to activate HbF production Ongoing Early-phase trial initiated; aims to reduce risks associated with double-stranded DNA breaks. Editas Medicine, 2024 Cas12a-mediated editing to induce HbF Ongoing First clinical use of Cas12a; received orphan drug designation; data expected in late 2024. UCSF Consortium, 2024 Non-viral CRISPR-Cas9 correction of HBB mutation Planned First U.S. trial using non-viral delivery to directly correct the sickle mutation; enrollment in 2025. CRISPR Therapeutics, 2025 In vivo CRISPR-Cas9 editing of HBB gene Ongoing First in vivo trial for SCD; aims to eliminate need for bone marrow transplantation. Trends & Gaps Trends: Regulatory approvals of CRISPR-based therapies (e.g., Casgevy) signify a shift toward gene-editing treatments for SCD. Emergence of novel editing techniques (base editing, Cas12a) to enhance precision and safety. Initiation of in vivo editing trials aiming to simplify treatment protocols and improve accessibility.​ ScienceDirect +10 African Journals Online +10 The Guardian +10 Silicon Review Europe +3 innovativegenomics.org +3 Wikipédia +3 Gaps: High costs (estimated over $2 million per patient) limit widespread adoption and accessibility. Dependence on intensive conditioning regimens (e.g., chemotherapy) poses risks and limits patient eligibility. Limited data on long-term safety and efficacy, particularly concerning off-target effects and durability of response. Need for scalable, non-viral delivery methods to facilitate broader application.​ Wikipédia +2 WIRED +2 Verywell Health +2 Future Directions The future of CRISPR-based therapies for sickle cell disease lies in enhancing accessibility, safety, and scalability. Efforts are underway to develop non-invasive delivery methods, such as in vivo editing techniques, which could obviate the need for bone marrow transplantation and intensive conditioning regimens. Advancements in base editing and the use of alternative nucleases like Cas12a aim to improve precision and reduce off-target effects. Addressing the high costs associated with these therapies is critical; strategies include optimizing manufacturing processes and developing cost-effective delivery systems. Collaborative efforts among researchers, clinicians, and policymakers are essential to ensure equitable access to these transformative treatments globally.​ innovativegenomics.org References [1] H. Frangoul et al., “CRISPR-Cas9 Gene Editing for Sickle Cell Disease and β-Thalassemia,” New England Journal of Medicine, vol. 384, no. 3, pp. 252–260, 2021, doi: 10.1056/NEJMoa2031054.​ Wikipédia [2] Innovative Genomics Institute, “CRISPR Clinical Trials: A 2024 Update,” 2024. [Online]. Available: https://innovativegenomics.org/news/crispr-clinical-trials-2024/​ Wikipédia +2 innovativegenomics.org +2 innovativegenomics.org +2 [3] M. Krigel, “Novel Gene Therapy Trial for Sickle Cell Disease Launches,” UC San Francisco, Nov. 22, 2024. [Online]. Available: https://www.ucsf.edu/news/2024/11/428941/novel-gene-therapy-trial-sickle-cell-disease-launches​ Home [4] “CRISPR Therapeutics Launches Landmark In Vivo Gene-Editing Trial for Sickle Cell Disease,” The Silicon Review, Mar. 2025. [Online]. Available: https://thesiliconreview.com/2025/03/crispr-in-vivo-sickle-cell​ SynBioBeta +3 Silicon Review Europe +3 Verywell Health +3 [5] S. T. Campbell, “Approval of the First CRISPR-Cas9 Gene Editing Therapy for Sickle Cell Disease,” Clinical Chemistry, vol. 70, no. 10, p. 1298, 2024, doi: 10.1093/clinchem/hvae038.​ Oxford Academic [6] “FDA Approves the First Gene-Editing Treatment for Sickle Cell Disease,” Verywell Health, Nov. 8, 2023. [Online]. Available: https://www.verywellhealth.com/gene-therapy-for-sickle-cell-disease-8387826​ Verywell Health
 

Writing Style of GPT-4.5

GPT-4.5’s style combines creative flair with coherent long-form narrative, leveraging advanced reasoning and nuanced context.

Enhanced Contextual Understanding

Maintains nuance and coherence across 128K tokens for long-form content. citeturn0search3

Advanced Reasoning Capability

Enables complex analysis and logical consistency in generated text. citeturn0search3

Creative Pattern Recognition

Recognizes patterns and draws connections to produce inventive insights. citeturn0search0

GPT-4.5 Pricing

GPT-4.5 pricing is based on per-million-token usage for input, cached input, and output tokens.

Input tokens

$75
per 1M tokens

Cached-input tokens

$37.50
per 1M tokens

Output tokens

$150
per 1M tokens

Input tokens: $75/M; Cached-input tokens: $37.50/M; Output tokens: $150/M. citeturn0search4

Best Alternatives to GPT-4.5

If GPT-4.5 doesn’t meet your needs, consider:

GPT-4o

Best for: Cost-sensitive tasks with long contexts

Balanced compute cost with 128K context and improved cost efficiency.

Read Review

Gemini 2.5 Pro

Best for: Ultra-long-form creative projects

Creative writing champion with 1M-token context window.

Read Review

Claude 3.7 Sonnet

Best for: Empathetic long-form and poetry

Hybrid reasoning and moral nuance in poetry.

Read Review

Frequently Asked Questions

Is GPT-4.5 open source?

No, it’s proprietary via the OpenAI API.

What is its context window?

128,000 tokens (128K)

When is its knowledge cutoff?

October 2024

How much does it cost to use?

Input: $75/M; Cached-input: $37.50/M; Output: $150/M

Does it support multimodal input?

“Yes, handles text and image inputs

Final Verdict: Is GPT-4.5 Worth It?

Its top-tier fiction capabilities and advanced features come with steep pricing, making it best suited for high-value creative workflows.