# OpenAI GPT-5.6 Sol Pro

OpenAI GPT-5.6 Sol Pro costs $4.00 per million input tokens and $20.00 per million output tokens, as of October 22, 2026. None of the 6 coding benchmarks behind the index has measured it, so it has no coding index, but 7 benchmarks outside the index have a result below.

Page: https://llmbenchmark.ai/models/gpt-5-6-sol-pro
Data from October 22, 2026. Every figure below names the board it was read from and the day.

- Maker: OpenAI
- Released: July 9, 2026
- Price per million input tokens: $4.00
- Price per million output tokens: $20.00
- Context window: 1.05M tokens

Benchmark results (7 of 195):

- WeirdML: 89.4% (source: Epoch AI benchmarking hub, read October 22, 2026)
- APEX-Agents: 51.4% (source: Epoch AI benchmarking hub, read October 22, 2026)
- SimpleBench: 71.7% (source: Epoch AI benchmarking hub, read October 22, 2026)
- Chess puzzles: 68.0% (source: Epoch AI benchmarking hub, read October 22, 2026)
- FrontierMath, tier 4: 80.5% (source: Epoch AI benchmarking hub, read October 22, 2026)
- DTBench: 96.0% (source: Epoch AI benchmarking hub, read October 22, 2026)
- LMCA: 59.2% (source: Epoch AI benchmarking hub, read October 22, 2026)