GPT-6.1 Sol API pricing
As of October 16, 2026, GPT-6.1 Sol costs $2.00 per million input tokens and $10.00 per million output tokens on the OpenAI API. Cached input is $0.10 per million.
New Sep 29
It is the 20th cheapest of 36 OpenAI models tracked here, by blended price. The closest Standard-tier model from another provider is Claude Sonnet 5 (Anthropic) at $2.00 / $10.00, the same blended price. Same list price as Claude Sonnet 5, Claude Sonnet 5.5, GPT-6 Sol, Gemini 4 Argon. First listed in the LiteLLM price data on September 29, 2026. Prompts longer than 272K tokens are billed at $4.00 input / $15.00 output.
Input / 1M tokens$2.00
Output / 1M tokens$10.00
Context window922K
Max output128K
Every published rate
| Rate | Per 1M tokens |
|---|
| Input (standard) | $2.00 |
| Output (standard) | $10.00 |
| Cached input (read) | $0.10 |
| Cache write | $2.50 |
| Batch input | $1.00 |
| Batch output | $5.00 |
| Input, prompts over 272K tokens | $4.00 |
| Output, prompts over 272K tokens | $15.00 |
What it costs in practice
| Task | Tokens | Per request | Per 1,000 requests |
|---|
| Chatbot reply | 1,000 in / 500 out | $0.007 | $7.00 |
| Summarize a long document | 20,000 in / 1,000 out | $0.05 | $50.00 |
| Coding agent step | 50,000 in / 2,000 out | $0.12 | $120 |
Standard rates, no caching or batch discount; prompts over 272K tokens are billed at the higher long-prompt rate. Compare your own numbers across all models →
Price history
Dates are when each change first appeared in the LiteLLM price data, usually within days of the provider's announcement.
Details
| Provider | OpenAI |
| Price tier | Standard |
| Features | Vision, Reasoning, Prompt caching, Tool use, PDF input, Web search |
| API model names | gpt-6.1-sol |
| Official pricing | developers.openai.com |
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