Chess with an engine
loads medium
Tech. quality98
UX63
Time8 min 18 s
Cost$0.29
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GPT-6.1 Sol
Loads without errors5/5#1 of 26
Tech. quality99/100#1 of 26
UX78/100#23 of 26
Total cost$1.08
Average time6 min 23 s#20 of 26
Total tokens869,355
API price: $2 / $10 per 1M input / output tokens · as of 15/10/2026 source ↗
What is GPT-6.1 Sol good for?
OpenAI's model with near-Astra performance at a lower cost – for complex work where intelligence and cost need balancing.
Description based on the maker · source ↗
- Maker
- OpenAI
- Released
- 29/09/2026
- Context window
- 1.05M tokens
- Model weights
- closed, the model is available through the API only
- Reasoning levels
- low medium high
How did GPT-6.1 Sol do in the AI Lab tests?
- 5 of 5 outputs load without errors.
- Its best technical result was on the “Solar System” prompt (100/100).
- It implemented the chess rules flawlessly – passing the objective perft test on all 6 positions.
- Average time per prompt 6 min 23 s#20 of 26
- Average cost per prompt $0.22#15 of 26
- Technical quality 99/100#1 of 26
- Automatic UX rating 78/100#23 of 26
Outputs
All outputs of GPT-6.1 Sol on the 5 prompts every other model got as well.
Solar System
loads medium
Tech. quality100
UX81
Time4 min 53 s
Cost$0.21
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GTA-style game
loads medium
Tech. quality100
UX79
Time8 min 19 s
Cost$0.26
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Monitor test
loads medium
Tech. quality100
UX96
Time3 min 30 s
Cost$0.12
Compare →
New York & Central Park map
loads medium
Tech. quality99
UX70
Time6 min 54 s
Cost$0.21
Compare →
Cost = tokens priced with the API price list valid on the date shown next to the cost (prices change). ≈ = estimate (only the total token count is known), no ≈ = exact from input / output tokens. “Loads” = the page opens without errors; technical quality also checks behaviour during use – judge the quality in the viewer.