OpenAI
GPT-6.1 Sol
GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series.
At a glance
- Input / 1M
- $2
- Output / 1M
- $10
- Context
- 1.05M
- Max output
- 128K
- Intelligence
- 51.8
- Released
- Sep 2026
Pricing
GPT-6.1 Sol API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $2 |
|---|---|
| Output tokensPer 1M tokens | $10 |
| Cached input (read)Per 1M tokens | $0.10 |
| Cache writePer 1M tokens | $2.50 |
| Long-context pricingPrompts above 272K tokens | $4 in / $15 out |
| Web searchPer request | $0.01 |
Chat message
2K in, 500 out
$9
per 1,000 requests
Coding task
30K in, 4K out
$100
per 1,000 requests
Long document summary
150K in, 2K out
$320
per 1,000 requests
Benchmarks
GPT-6.1 Sol benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
51.8
Coding index
Not available
Agentic index
Not available
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 1.05M tokens
- Max output
- 128K tokens
- Input types
- File, Image, Text
- Output types
- Text
- Reasoning effort
- Max, Extra high, High, Medium, Low
- Release date
- September 29, 2026
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
GPT-6.1 Sol vs other models
See how GPT-6.1 Sol stacks up head to head on price, benchmarks, and features.
VS
GPT-6.1 Sol vs Claude Opus 5.5
OpenAI vs Anthropic
See comparisonVSGPT-6.1 Sol vs Claude Sonnet 5.5
OpenAI vs Anthropic
See comparisonVSGPT-6.1 Sol vs Claude Fable 5.1
OpenAI vs Anthropic
See comparisonVSGPT-6.1 Sol vs GPT-6 Astra
OpenAI vs OpenAI
See comparisonVSGPT-6.1 Sol vs Claude Opus 5
OpenAI vs Anthropic
See comparisonVSGPT-6.1 Sol vs Claude Fable 5
OpenAI vs Anthropic
See comparisonMore GPT-6.1 Sol comparisons
- GPT-6.1 Sol vs Muse Spark 1.3
- GPT-6.1 Sol vs GPT-6 Sol
- GPT-6.1 Sol vs GPT-5.6 Sol
- GPT-6.1 Sol vs Grok 4.7
- GPT-6.1 Sol vs DeepSeek V4.1 Flash
- GPT-6.1 Sol vs GLM 5.3 Flash
- GPT-6.1 Sol vs MiMo-V2.6-Flash
- GPT-6.1 Sol vs GLM 5.3
- GPT-6.1 Sol vs Hy4 preview
- GPT-6.1 Sol vs GPT-6 Luna
- GPT-6.1 Sol vs Kimi K3
- GPT-6.1 Sol vs DeepSeek V4 Flash 0731
Alternatives
GPT-6.1 Sol alternatives
Similar models worth considering, and where each one has the edge.
Anthropic
Claude Opus 5.5
Anthropic
Claude Sonnet 5.5
OpenAI
GPT-6 Astra
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does GPT-6.1 Sol cost?
GPT-6.1 Sol costs $2 per 1M input tokens and $10 per 1M output tokens through the API. A typical chat message costs about $9 per 1,000 messages.
What is the context window of GPT-6.1 Sol?
GPT-6.1 Sol accepts up to 1.05M tokens of input and can write up to 128K tokens in a single response.
What is the best alternative to GPT-6.1 Sol?
Claude Opus 5.5 from Anthropic is a strong alternative. It offers: higher intelligence score.
Can I use GPT-6.1 Sol alongside other models?
Yes. Shortcut Chat sends one prompt to GPT-6.1 Sol and any other models you pick at the same time, so you can compare answers side by side.
Try GPT-6.1 Sol next to every other model.
Use GPT-6.1 Sol alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.