GPT-6.1 Sol API pricing and agent cost
| Provider | OpenAI |
|---|---|
| Input | $2.0 / 1M tokens |
| Output | $10.0 / 1M tokens |
| Cached input | $0.1 / 1M tokens |
Prompts with more than 272K input tokens are priced at 2x input and cache rates and 1.5x output for the full request (OpenAI model page). Derived long-context rate: $4 in / $0.20 cached / $15 out.
Source: https://developers.openai.com/api/docs/pricing (checked 2026-10-25)
Example agent cost
An agent making 5 tool calls per task, with 3,000 input and 800 output tokens per call, running 100 tasks a day costs about $0.0700 per task, $7.00 per day, and $210.00 per month on GPT-6.1 Sol.
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