OpenAI

GPT-6.1 Sol

OpenAI updated frontier reasoning model with enhanced long-horizon planning, refined code synthesis, and reduced hallucination rates.

#11released Oct 8, 2026·Proprietary·Not disclosed
textimage1M ctxreasoning
Intelligence
92.4 #11
AAQI 93.0
Output Speed
75 t/s
ITL 13.3 ms/tok
Blended price (3:1)
$10 /1M
In $5/M · Out $20/M
Context
1M
≈ 2,500 A4 pages · max out 65,536

Quality Domain Radar

6-Axis Frontier Evaluation vs Category Average & Flagship

GPT-6.1 Sol
Claude Mythos Preview (#1)
Average (68)
Coding (89)Mathematics (95)Hard Science (GPQA) (95.5)Agentic & Tool Use (86.5)Knowledge (MMLU) (89)Vision / Multimodal (93)

Radar axes are approximated from category scores where direct benchmark measurements are missing — see Methodology.

Strengths & Trade-offs

Where it wins

  • Near-Astra intelligence at a fraction of the cost
  • Top SWE-bench-tier verified coding
  • Cheapest cache reads in the GPT-6 family

Trade-offs to watch

  • Still below Astra on frontier reasoning
  • Closed weights; usage-based pricing only

Killer Use Cases

Codex-style agents
Day-to-day agentic coding at sustainable cost.
CI fix loops
Cheap cached prompts for repeated repo context.
Professional knowledge work
Analysis, drafting and structured reasoning.

Developer Quickstart & API

Set OPENAI_API_KEY first — get an API key
curl https://api.openai.com/v1/responses \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "content-type: application/json" \
  -d '{
    "model": "gpt-6.1-sol",
    "input": "Refactor this function for O(n) time and explain the change."
  }'

Official Resources & Links

API deployment

Compare hosts & latency

Throughput, TTFT and cache pricing across Groq, Cerebras, Together, DeepInfra, Fireworks, Bedrock and Azure.

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Scores by Source

Head-to-head Live Matchups

Live Specs & Architecture

Under the hood
GPT-6.1 Sol — DevDay coding refresh
  • Near-Astra coding performance at roughly one-fifth the token price
  • 95% discount on cached input tokens for repo-scale prompts
  • Tuned for agentic coding and computer use
Release date
Oct 8, 2026
Architecture
GPT-6.1 Sol — DevDay coding refresh
Parameters
Not disclosed
License
Proprietary
Context Window
1,000,000 tokens
Max Output
65,536 tokens
Modalities
text + image
Cache Pricing
read $0.5 · write $5 /1M
Reasoning
Effort levels
Input Price
$5/M
Output Price
$20/M
Output Speed
75 t/s
Time to First Token
—
Data Updated
Oct 12, 2026

Estimated monthly bill

Estimated monthly spend
$0.00
Calculating savings vs GPT-4o...

Cite & embed

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BibTeX
@misc{llmpodium2026gpt61sol,
  title = {Benchmark Analysis and Intelligence Evaluation of GPT-6.1 Sol},
  author = {LLMPodium Research},
  year = {2026},
  url = {https://llmpodium.com/models/gpt-6-1-sol}
}

Embed Score Badge

Add a live Podium Score badge to your GitHub or Hugging Face README — it links back to the live ranking.

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GPT-6.1 Sol LLMPodium Score
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