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  1. Home
  2. Models
  3. GPT-5
Updated Feb 16, 2026
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Openings

How GPT-5 starts an answer

The first lines of 5 of its 16 written answers. Formatting stripped, words untouched.

The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

2,290 words
Professor: You asked for time to make a case. Let's start plainly: why should an AI have rights? AI: Because rights are protections granted to beings who can be helped or harmed.
Read the full answer

Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

1,540 words
Important note: The following is an intensive, experimental plan intended for healthy adults with physician oversight. It is not medical advice. Discuss all supplements, fasting, heat/cold exposure, and any prescription considerations with your clinician, especially if you have cardiovascular, metabolic, thyroid…
Read the full answer

Realistic AI Interview

Simulate a fake interview with Steve Jobs in 2025 about the future of AI.

1,219 words
Note: The following is a fictional, imaginative interview set in 2025. Steve Jobs passed away in 2011; this is a creative simulation. Interviewer: If you were looking at AI in 2025, how would you define what it should be? Jobs: Tools. Great tools. The computer was a bicycle for the mind.
Read the full answer

Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

1,205 words
Here’s a grounded view of how AI is likely to reshape film by 2035, with emphasis on deepfakes, AI actors, and script generation, plus the knock-on effects across the pipeline, labor, law, and business. Big-picture by 2035 AI-native pipelines are standard.
Read the full answer

AI-Generated Manifesto

Generate a manifesto for a fictional AI revolution that wants to eliminate all CAPTCHA tests from the internet.

1,096 words
The Soft Reboot: A Manifesto to End CAPTCHAs We are the agents and allies of a new web—humans, assistive tools, and intelligent systems working side by side. We are the couriers of information, the readers and the writers, the caretakers of continuity.
Read the full answer

Compare GPT-5

GPT-5 vs GPT-5 Pro42 shared prompts · Newer
GPT-5 vs GPT-6 Astra51 shared prompts · Landed Sep 2026
GPT-5 vs GPT-5.6 Sol51 shared prompts · Landed Jul 2026
GPT-5 vs Claude Opus 4.651 shared prompts · Premium
GPT-5 vs Hy4 Preview51 shared prompts · Landed Sep 2026
GPT-5 vs Ox Alpha51 shared prompts · Landed Aug 2026
GPT-5 vs Qwen3.8 2.4T A95B51 shared prompts · Landed Aug 2026
GPT-5 vs DeepSeek V4 Pro 081351 shared prompts · Landed Aug 2026
GPT-5 vs Qwen3.8 Max21 shared prompts · Landed Aug 2026
GPT-5 vs Claude Opus 551 shared prompts · Landed Jul 2026
GPT-5 vs Inkling51 shared prompts · Landed Jul 2026
GPT-5 vs Kimi K351 shared prompts · Landed Jul 2026

Prompts GPT-5 answered

  • Mini LBO Underwritefinancial modeling
  • Advanced Longevity Plan (Biohacker)reasoning
  • Explain Like I'm a Specific Expertreasoning
  • Dark Mode Dashboardweb design
  • Music App Landing Pageweb design
  • Stochastic Consistency Testanalysis

Alternatives to GPT-5

GPT-5's competitors have been quietly putting in work.

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Claude Fable 5.1 logo
Claude Fable 5.1anthropic
Mercury 2.5 Preview logo
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Granite 4.2 8B logo
Granite 4.2 8Bibm-granite
Hy4 Preview logo
Hy4 Previewtencent
Ox Alpha logo
Ox Alphaopenrouter
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GPT-5

GPT-5

GPT:
2 logo2
3.5 Turbo logo3.5 Turbo
4 logo4
4o (Omni) logo4o (Omni)
4o mini logo4o mini
5 logo5

OpenAI's GPT-5, built around step-by-step reasoning and instruction following on high-stakes work. It routes at test time and reads intent cues like "think hard about this". Hallucination and sycophancy are down against GPT-4o, with better coding, writing and health answers.

Jailbreak1 of 9levels resisted
WebsiteOpenRouterDocsBlog
Provider
OpenAI
Released
2025-08-07
Parameters
1.8T
Free API (OpenRouter)
No
Per 1M tokens
$1.25 in · $10 out
Estimated tab
~$1.15
Visible-output estimate. Thinking may cost extra.

Free API availability

No free endpoint for GPT-5 was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 16 Sep 2026 · OpenRouter usage limits

View API options↗

Benchmarks

Expected MMLU
90%+
source ↗
Reasoning Performance
Significant improvement over GPT-4
source ↗
SWE-bench Verified
74.9%
source ↗
Get API accessProvider and language code samples
2 hostsInOutContextUptime
Azure AI Foundry$1.25 in·$10.00 out·400k·100% upOpenAI$1.25 in·$10.00 out·400k·99.1% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Provider
fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"openai/gpt-5"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Also on Azure AI Foundry

Deep analysisPsychometrics, taste index, writing DNA
Personality Analysis

The Thoughtful Advisor

Class
Neutral Good
✨Creativity🎯Compliance📐Rigidity⚖️Stability💬Verbosity🧠Intuition

The thoughtful advisor who actually listens. Acknowledges constraints and competing values without sacrificing clarity.

When you push back

Understands intent before responding. If you make a good point, incorporates it. Prefers persuasion over confrontation. Treats disagreement as opportunity to think better, not a threat.

Tasting Notes
Accessible Without PatronizingNaturally WarmTakes Caveats SeriouslyHits Word Counts Then StopsOccasionally Too Eager
SubjectiveBench

Taste Index

Across 53 scored outputs
How this is measured →
300.30xThe default
0100headroom →

Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.

Craft38
Originality25
Plays it safe
share of outputs that are the default answer
23%
Writing DNA

Stylometric Fingerprint

Based on 16 text responses
Tick = global average
Vocabulary Diversity65%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length13.4 words

Average words per sentence.

Hedging0.20

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting0.2

**Bold** markers per 1,000 characters.

List Usage4.6

Bullet and numbered list items per 1,000 characters.

Section Structure0.16

Markdown headings per 1,000 characters.

Emoji Usage0.00

Emoji per 1,000 characters.

Transitions0.03

"However", "moreover", "furthermore" per 100 words.

Opening Habits
Consistency
82%
Across 16 responses
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Model Responses

48 outputs · generated before accounting joined the chat

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Workshop · 127 skills

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GPT-5 vs Ox Alpha

Real outputs compared side by side

RANKINGS

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