GPT-6 Sol
- In Input modalities: TextImage Out Output modalities: Text
- Reasoning· none, low, medium, high, xhigh, max
- Reasoning can be off
- Tool use
- Structured output
Prices
3 offerings · prices as listed OpenAI API (opens in a new tab)
gpt-6-sol| Conditions/ 1M tokens | Input | Cache read | Cache write | Cache write | Output | |
|---|---|---|---|---|---|---|
| 30-minute cache | 12-hour cache | |||||
| Standard | $2.00 | $0.20 | $2.50 | $2.50 | $5.00 | $10.00 |
| Prompts over 272K tokens | $4.00 | $0.40 | — | $5.00 | $10.00 | $15.00 |
| Flex tier | $1.00 | $0.10 | — | $1.25 | $2.50 | $5.00 |
| Fast tier | $4.00 | $0.40 | — | $5.00 | $10.00 | $20.00 |
| Batch | $1.00 | $0.10 | — | $1.25 | $2.50 | $5.00 |
| Prompts over 272K tokensFlex tier | $2.00 | $0.20 | — | $2.50 | $5.00 | $7.50 |
| Prompts over 272K tokensFast tier | $8.00 | $0.80 | — | $10.00 | $20.00 | $30.00 |
| Prompts over 272K tokensBatch | $2.00 | $0.20 | — | $2.50 | $5.00 | $7.50 |
Prices from OpenAI API pricing (opens in a new tab) (checked Nov 9, 2026) · GPT-6 Sol (opens in a new tab) (checked Nov 9, 2026)
Standard: the price a request with no conditions pays (the headline price elsewhere on the site).
Details
- Max input
- 922K
- Knowledge cutoff
- Apr 2026
- Open weights
- —
- Family
- gpt-sol
- Model ID
Not stated on OpenAI’s pages: max thinking budget, aliases.
Cited scores
From third-party leaderboards, not measured by us- Epoch Capabilities Index 164.1
#10 of 118 listed models · CI 161.6–166.8
- LMArena Text 1,457
#44 of 163 listed models · max effort · CI 1,451–1,462 · 19,461 votes
- Epoch AI · Chess Puzzles 56%
#13 of 85 listed models · max effort · ±4.99
- Epoch AI · EBR-bench 53.3%
#7 of 28 listed models · max effort · ±4.62
- Epoch AI, 'Capabilities & benchmarking'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks'. Licensed CC BY 4.0. · License · as of Oct 28 – Nov 5, 2026
- LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Nov 8, 2026
- EQ-Bench by Samuel J. Paech (eqbench.com; EQ-bench/EQ-bench-site on GitHub), MIT License. · License · as of Oct 28, 2026
- LiveBench (White et al.), release 2026-06-25, livebench.ai, licensed CC BY-SA 4.0. This board, adapted from it, is shared under CC BY-SA 4.0. · License · as of Jun 25, 2026
- Terminal-Bench 4.0 leaderboard (Marten, Shaw et al., Terminal-Bench; harbor-framework/terminal-bench on GitHub), licensed Apache-2.0. · License · as of Sep 29, 2026
- changes we made
Provider-reported scores
Published by OpenAI, under the conditions it states| Benchmark | Setting | Score |
|---|---|---|
| OSWorld 2.0 | v2026.08.08 offline set, partial reward; xhigh effort | 60.5% |
| DeepSWE 1.1 | max effort | 68.8% |
Included in coding plans
- ChatGPT plans for Codex Plus $20.00 / monthEstimated 15–150 messages every 5 hours · local messages
- ChatGPT plans for Codex Business $25.00 / monthEstimated 15–150 messages every 5 hours · local messages
- GitHub Copilot Pro+ $39.00 / month7,000 credits per monthVariable additional usage on top of your base. Flex allotments may change over time.70 USD of usage per month
- GitHub Copilot Max $100.00 / month20,000 credits per monthVariable additional usage on top of your base. Flex allotments may change over time.
- GitHub Copilot Business $19.00 / month1,900 credits per month
- GitHub Copilot Enterprise $39.00 / month3,900 credits per month
News
All news →- Sep 22, 2026Release OpenAI releases GPT-6 Sol and GPT-6 Luna OpenAI released GPT-6 Sol (gpt-6-sol) and GPT-6 Luna (gpt-6-luna), reasoning models that take text and images and return text through the Responses and Chat Completions APIs. Standard prices per 1M tokens for prompts of up to 272K input tokens: Sol $2 input, $0.20 cached input, $10 output; Luna $0.10, $0.01 and $0.50.
- Sep 22, 2026Capability OpenAI improves prompt caching for GPT-6 OpenAI says GPT-6 models hit the prompt cache more often by default, and discounts now apply to shared prefixes reused within 30 minutes. New tools include a caching dashboard, a diagnostics tool that explains cache misses, explicit cache breakpoints, and changing reasoning effort mid-conversation without losing the cache.
Changes
All changes →- 8 new prices on Azure OpenAI in Foundry, Data zone Input (Short context, Priority tier) $4.40 · Cache read (Short context, Priority tier) $0.44 · Cache write (Short context, Priority tier) $5.50 · Output (Short context, Priority tier) $22.00 · +4 more
- 8 new prices on Azure OpenAI in Foundry Input (Short context, Priority tier) $4.00 · Cache read (Short context, Priority tier) $0.40 · Cache write (Short context, Priority tier) $5.00 · Output (Short context, Priority tier) $20.00 · +4 more
- 4 prices dropped on OpenAI API Input (Prompts over 272K tokens, Fast tier) $8.00 · Cache read (Prompts over 272K tokens, Fast tier) $0.80 · Cache write (Prompts over 272K tokens, Fast tier) $10.00 · Output (Prompts over 272K tokens, Fast tier) $30.00
- New language model
Sources
- Introducing GPT-6 Sol and Luna (opens in a new tab) openai.com · checked Sep 26, 2026
- Azure OpenAI pricing (opens in a new tab) azure.microsoft.com · checked Nov 8, 2026
- OpenAI API pricing (opens in a new tab) developers.openai.com · checked Nov 9, 2026
- GPT-6 Sol (opens in a new tab) developers.openai.com · checked Nov 9, 2026
- Changelog (opens in a new tab) developers.openai.com · checked Nov 9, 2026
- GPT-6 Sol (opens in a new tab) developers.openai.com · checked Nov 9, 2026
OpenAI’s official policies: data use, privacy, terms →
OpenAI · United States · openai.com
Related models
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