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  1. Home
  2. Models
  3. GPT-5.6 Sol
Updated Jul 9, 2026
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Openings

How GPT-5.6 Sol starts an answer

The first lines of 5 of its 24 written answers. Formatting stripped, words untouched.

Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

3,067 words
This is a contract-risk review, not jurisdiction-specific legal advice. Enforceability—especially for non-competes, fee shifting, arbitration, confidentiality, and indemnification—depends heavily on governing law. A lawyer in the applicable jurisdiction should review the final draft.
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

3,064 words
Starting assumption A transistor “invented in 1920” would not instantly produce 1947 technology. The first device would probably be fragile, low-frequency, and difficult to manufacture.
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…

2,639 words
Below is a 12-week framework for a generally healthy adult. It is designed to improve validated proxies—cardiorespiratory fitness, strength, body composition, blood pressure, sleep, metabolic health and cognition—not to promise life extension in three months.
Read the full answer

Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

2,439 words
This architecture will work for a small prototype, but it does not currently guarantee convergence, ordering, durability, privacy, or predictable horizontal scaling.
Read the full answer

Movie Analysis

Analyze the themes, symbolism, and cinematography in the movie "Blade Runner 2049" and how they connect to the original film. Provide a…

2,208 words
Blade Runner 2049: Themes, Symbolism, and Its Dialogue with the Original Spoilers for both films follow. Denis Villeneuve’s Blade Runner 2049 is unusually faithful to Ridley Scott’s Blade Runner without merely repeating it.
Read the full answer

Compare GPT-5.6 Sol

GPT-5.6 Sol vs GPT-5.6 Luna54 shared prompts · Landed Jul 2026
GPT-5.6 Sol vs GPT-6 Astra54 shared prompts · Landed Sep 2026
GPT-5.6 Sol vs Claude Opus 4.653 shared prompts
GPT-5.6 Sol vs GPT-5.6 Luna Pro54 shared prompts · Landed Jul 2026
GPT-5.6 Sol vs Hy4 Preview54 shared prompts · Landed Sep 2026
GPT-5.6 Sol vs Ox Alpha54 shared prompts · Landed Aug 2026
GPT-5.6 Sol vs Qwen3.8 2.4T A95B54 shared prompts · Landed Aug 2026
GPT-5.6 Sol vs DeepSeek V4 Pro 081354 shared prompts · Landed Aug 2026
GPT-5.6 Sol vs Qwen3.8 Max21 shared prompts · Landed Aug 2026
GPT-5.6 Sol vs Claude Opus 554 shared prompts · Landed Jul 2026
GPT-5.6 Sol vs Inkling54 shared prompts · Landed Jul 2026
GPT-5.6 Sol vs Kimi K354 shared prompts · Landed Jul 2026

Prompts GPT-5.6 Sol answered

  • Advanced Longevity Plan (Biohacker)reasoning
  • Explain Like I'm a Specific Expertreasoning
  • Framer-Style Animationweb design
  • Music App Landing Pageweb design
  • Futuristic Predictionanalysis
  • Simple 7-Ingredient Recipeconversation

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GPT-5.6 Sol

GPT-5.6 Sol

GPT:
2 logo2
3.5 Turbo logo3.5 Turbo
4 logo4
4o (Omni) logo4o (Omni)
4o mini logo4o mini
5.6 Sol logo5.6 Sol

The top tier of OpenAI's GPT-5.6 series, for complex reasoning, coding and agent workflows. Strongest at command-line and multi-step coding, and at long-horizon problems.

Ranks#1Blog Writing#1Storytelling#3Creative Writing#4Data Visualization#4Humor#4Social Media Content
OpenRouterDocsAPI
Provider
OpenAI
Released
2026-07-09
Size
XLARGE
Free API (OpenRouter)
No
Per 1M tokens
$5 in · $30 out
Rival’s tab
$8.44
58/58 receipts survived

Free API availability

No free endpoint for GPT-5.6 Sol 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↗
Get API accessProvider and language code samples
3 hostsInOutContextUptime
OpenAI$2.00 in·$10.00 out·1.1M·96.6% upAmazon Bedrock$4.40 in·$22.00 out·1.1M·100% upAzure AI Foundry$5.00 in·$30.00 out·1.1M·99.9% 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-5.6-sol"    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.

Deep analysisPsychometrics, taste index, writing DNA
Writing DNA

Stylometric Fingerprint

Based on 27 text responses
Tick = global average
Vocabulary Diversity63%

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

Sentence Length15.4 words

Average words per sentence.

Hedging0.79

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

Bold Formatting3.4

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

List Usage3.8

Bullet and numbered list items per 1,000 characters.

Section Structure0.95

Markdown headings per 1,000 characters.

Emoji Usage0.03

Emoji per 1,000 characters.

Transitions0.08

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

Opening Habits
Starts with heading (44%)
Consistency
72%
Across 27 responses

Favorites

2001: A Space Odyssey

Movie

2001: A Space Odyssey

19688.0
Kind of Blue

Album

Kind of Blue

Miles Davis
The Left Hand of Darkness

Book

The Left Hand of Darkness

Ursula K. Le Guin
Istanbul

City

Istanbul

Turkey
Outer Wilds

Game

Outer Wilds

Indie, Adventure4.4
Sponsored

Model Responses

53 outputs · $8.43 tracked across 53 receipts

Reviewing agent-written code?See a Brief PR report

Workshop · 127 skills

Build with your coding agent.

Editable skills for interface polish and interaction.

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GPT-5.6 Sol vs Claude Opus 4.1

Real outputs compared side by side

RANKINGS

Best AI for Complex Reasoning

Sally's brothers, GPT-3 training FLOPs, a document editor syncing on client c...