GPT-6 Sol
OpenAI's GPT-6 workhorse for coding and agentic workflows. $2/$10 per million tokens with a 1.05M-token context window. Vendor-reported DeepSWE 68.8% at max effort.
Start requirement: 75 credits to start
GPT-6 Sol has been retired. It can no longer be selected for new runs, and past runs that used it stay viewable. The specs below are kept for reference.
Capabilities
Pricing
| Up to 272K prompt tokens · Input | $4 / 1M tokens |
| Up to 272K prompt tokens · Cached input | $0.4 / 1M tokens |
| Up to 272K prompt tokens · Cache write | $5 / 1M tokens |
| Up to 272K prompt tokens · Output | $20 / 1M tokens |
| Over 272K prompt tokens · Input | $8 / 1M tokens |
| Over 272K prompt tokens · Cached input | $0.8 / 1M tokens |
| Over 272K prompt tokens · Cache write | $10 / 1M tokens |
| Over 272K prompt tokens · Output | $30 / 1M tokens |
| Web search (when used) | $20 / 1,000 calls |
List prices plus 100%. Higher reasoning effort can consume more output tokens; it has no separate fixed multiplier. One credit equals 1¢ charged, with a one-credit minimum per completed run and the aggregate rounded up once.
Provider pricing source · verified 2026-09-22
Use these instead
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Try GPT-6 Astra→Claude Opus 5.5
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Try Claude Sonnet 5.5→