GPT-6.1 Sol benchmarks, pricing and specs
GPT-6.1 Sol is an OpenAI model released on September 29, 2026 that takes text and image input and produces text. It costs $2 per 1M input tokens and $10 per 1M output tokens and accepts up to 1,050,000 tokens of context. It scores 1484 Elo on Arena Text, #11 of 39 current models (Arena, measured October 8, 2026).
- Per 1M input tokens
- $2
- Per 1M output tokens
- $10
- Context window
- 1.05M
- Arena Text
- 1484 Elo · #11/39
Data verified October 12, 2026 · Dataset 2026-10-12
Key facts
- Provider
- OpenAI
- Model family
- GPT-6.1
- Release date
- September 29, 2026
- Status
- Current
- Access
- API only
- API model id
- Not reported
- Context window
- 1,050,000 tokens
- Max output
- 128,000 tokens
- Input
- text, image
- Output
- text
- Task families
- text, multimodal
- Declared capabilities
- reasoning
GPT-6.1 Sol pricing
It is the #12 most expensive of 37 current text models priced per 1M input tokens.
Independent benchmark results
Scores come from independent evaluators that ran the model themselves, pinned to a dated snapshot. Rank is among current models in the same snapshot. OpenAI's own launch figures are listed under strengths with the publisher named, because they are not measured the same way.
| Benchmark | Score | Rank | Measured | Source |
|---|---|---|---|---|
| Arena Text | 1484 Elo | #11 of 39 | October 8, 2026 | Arena · 2026-10-12 |
| GPQA Diamond | 95.4% | #3 of 37 | October 12, 2026 | Epoch AI · 2026-10-12 |
| FrontierMath Tiers 1-3 (v2) | 93.7% | #1 of 37 | October 12, 2026 | Epoch AI · 2026-10-12 |
| SimpleQA Verified | 73.9% | #2 of 34 | October 12, 2026 | Epoch AI · 2026-10-12 |
Strengths, cautions and best uses
Strengths
- Matches GPT-6 Sol's $2 / $10 base rates while halving cached input to $0.10 per million, the cheapest cache read of any OpenAI model here
- 1,050,000-token context window with a 128,000-token maximum output
Cautions
- The same 272,000-token long-context cliff applies, rebilling the full request at $4 input and $15 output
- Released a week after GPT-6 Sol at identical base pricing, so the two are easy to confuse on a rate card; the cached rate is the difference
Best for
- Agent loops that replay a large cached prefix
- A drop-in alternative to GPT-6 Sol at the same base cost
Alternatives to GPT-6.1 Sol
The closest current textmodels by price. The cheapest model that scores as well or better is listed first; failing that, the cheapest one within 3% of the benchmark's scale.
Cheaper, same or higher score
Gemini 3.8 Flash
- 63% cheaper per 1M input tokens, $0.75 vs $2
- 13 points higher on Arena Text, 1497 vs 1484
- From Google
Claude Sonnet 5
- Same price per 1M input tokens, $2
- 23 points lower on Arena Text, 1461 vs 1484
- From Anthropic
Claude Sonnet 5.5
- Same price per 1M input tokens, $2
- 8 points lower on Arena Text, 1476 vs 1484
- From Anthropic
GPT-4.1
- Same price per 1M input tokens, $2
- 69 points lower on Arena Text, 1415 vs 1484
Compare GPT-6.1 Sol with
GPT-6.1 Sol FAQ
How much does GPT-6.1 Sol cost?
GPT-6.1 Sol costs $2 per 1M input tokens and $10 per 1M output tokens at the standard tier. It is the #12 most expensive of 37 current text models priced per 1M input tokens. Source: OpenAI, verified October 11, 2026.
What is the context window of GPT-6.1 Sol?
GPT-6.1 Sol accepts up to 1,050,000 tokens of context. It can return up to 128,000 tokens in one response. That ranks #1 of 44 current text models by context length.
How does GPT-6.1 Sol score on independent benchmarks?
GPT-6.1 Sol scores 1484 Elo on Arena Text, #11 of 39 current models (Arena, measured October 8, 2026), 95.4% on GPQA Diamond, #3 of 37 current models (Epoch AI, measured October 12, 2026) and 93.7% on FrontierMath Tiers 1-3 (v2), #1 of 37 current models (Epoch AI, measured October 12, 2026). These are independent evaluations, not OpenAI's own launch figures.
Is GPT-6.1 Sol open source or API only?
GPT-6.1 Sol is available through OpenAI's API only; its weights are not published.
What are the best alternatives to GPT-6.1 Sol?
The closest current alternatives by price and measured performance are Gemini 3.8 Flash (63% cheaper per 1M input tokens, $0.75 vs $2), Claude Sonnet 5 (same price per 1M input tokens, $2), Claude Sonnet 5.5 (same price per 1M input tokens, $2) and GPT-4.1 (same price per 1M input tokens, $2).
Sources
- OpenAI API pricing · OpenAI · official · verified October 11, 2026
- GPT-6 Astra model reference · OpenAI · official · verified September 9, 2026
- Epoch AI Benchmarking Hub data (benchmark_data.zip) · Epoch AI · independent · verified October 12, 2026 · CC-BY-4.0
- Arena leaderboard dataset (lmarena-ai/leaderboard-dataset) · Arena · independent · verified October 12, 2026 · CC-BY-4.0
Cite this page
Van Data Team. "GPT-6.1 Sol Benchmarks, Pricing and Specs." AI Model Benchmark Dataset 2026-10-12. https://vandatateam.com/ai-model-benchmarks/gpt-6-1-sol
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Production evaluation
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