GPT-6.1 Sol
Summary
GPT-6.1 Sol is a proprietary language model from OpenAI, released on 29 Sept 2026. It accepts text, images and PDFs and generates text, with a 1.1M-token context window and up to 128K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $2 per million input tokens and $10 per million output tokens (OpenAI API), across 5 providers we track.
Near-Astra performance for complex coding, computer use, and professional work at a lower cost.
Last verified 4 Oct 2026. Every figure on this page links to its source.
Specifications
| Developer | OpenAI |
|---|---|
| Release date | 29 Sept 2026 [models.dev] |
| Status | Generally available [models.dev] |
| Weights | Proprietary (API only) [models.dev] |
| Context window | 1.1M (1,050,000 tokens) [models.dev] |
| Max output | 128K tokens [models.dev] |
| Knowledge cutoff | 30 Apr 2026 [models.dev] |
| Input | Text, images and PDFs [models.dev] |
| Output | Text [models.dev] |
| Reasoning mode | Yes [models.dev] |
| Tool calling | Yes [models.dev] |
| Structured output | Yes [models.dev] |
GPT-6.1 Sol API pricing by provider
USD per million tokens. Sorted by input price.
| Provider | Input | Output | Cached input | Context | Source |
|---|---|---|---|---|---|
| OpenAI API gpt-6.1-sol | $2 | $10 | $0.10 | 1.1M | models.dev, 4 Oct 2026 |
| Amazon Bedrock global.openai.gpt-6.1-sol | $2 | $10 | $0.10 | 1.1M | models.dev, 4 Oct 2026 |
| Azure AI Foundry gpt-6.1-sol | $2 | $10 | $0.10 | 1.1M | models.dev, 4 Oct 2026 |
| OpenRouter openai/gpt-6.1-sol | $2 | $10 | $0.10 | 1.1M | OpenRouter, 4 Oct 2026 |
| Vercel AI Gateway openai/gpt-6.1-sol | $2 | $10 | $0.10 | 1.1M | models.dev, 4 Oct 2026 |
| Amazon Bedrock openai.gpt-6.1-sol | $2.20 | $11 | $0.11 | 1.1M | models.dev, 4 Oct 2026 |
| Amazon Bedrock us.openai.gpt-6.1-sol | $2.20 | $11 | $0.11 | 1.1M | models.dev, 4 Oct 2026 |
| Vercel AI Gateway openai/gpt-6.1-sol-fast | $4 | $20 | $0.20 | 1.1M | models.dev, 4 Oct 2026 |
Frequently asked questions
What is the context window of GPT-6.1 Sol?
GPT-6.1 Sol has a context window of 1,050,000 tokens (1.1M) and can generate up to 128,000 tokens in a single response, according to models.dev.
How much does the GPT-6.1 Sol API cost?
Through OpenAI API, GPT-6.1 Sol costs $2 per million input tokens and $10 per million output tokens. Prices last verified 4 Oct 2026.
Is GPT-6.1 Sol open source?
No. GPT-6.1 Sol is a proprietary model; OpenAI has not released its weights. It is available through APIs including OpenAI API, Amazon Bedrock, Azure AI Foundry, OpenRouter.
When was GPT-6.1 Sol released?
OpenAI released GPT-6.1 Sol on 29 Sept 2026, according to models.dev.
Which providers offer GPT-6.1 Sol?
We track GPT-6.1 Sol on 5 providers: OpenAI API, Amazon Bedrock, Azure AI Foundry, OpenRouter, Vercel AI Gateway.
Change history
No changes detected since we started tracking this model. We re-check every source daily.
Sources
- https://github.com/sst/models.dev/blob/dev/providers/openai/models/gpt-6.1-sol.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/global.openai.gpt-6.1-sol.toml
- https://github.com/sst/models.dev/blob/dev/providers/azure/models/gpt-6.1-sol.toml
- https://openrouter.ai/openai/gpt-6.1-sol
- https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-6.1-sol.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/openai.gpt-6.1-sol.toml
- https://github.com/sst/models.dev/blob/dev/providers/amazon-bedrock/models/us.openai.gpt-6.1-sol.toml
- https://github.com/sst/models.dev/blob/dev/providers/vercel/models/openai/gpt-6.1-sol-fast.toml