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GPT-6.1 Sol

openai/gpt-6.1-sol

OpenAI GPT-6.1 Sol with an Ultrafast Responses API service tier.

Compare
Context window
-
Input
Text
Output
Text
Released
2026-10-08
Weights
Closed
Capabilities
Reasoning, Structured, Tool call

Pricing

IN

$2.00 – $4.00

USD / 1,000,000 token

$2.00 · prompt: <=272000 input tokens

$4.00 · prompt: >272000 input tokens

Cache read

$0.10 – $0.20

USD / 1,000,000 token

$0.10 · prompt: <=272000 input tokens

$0.20 · prompt: >272000 input tokens

Cache write

$2.50 – $10.00

USD / 1,000,000 token

$2.50 · prompt: <=272000 input tokens; cache minimum lifetime 30m; total write rate (not surcharge)

$5.00 · prompt: >272000 input tokens; cache minimum lifetime 30m; total write rate (not surcharge)

$5.00 · prompt: <=272000 input tokens; cache minimum lifetime 12h; total write rate (not surcharge)

$10.00 · prompt: >272000 input tokens; cache minimum lifetime 12h; total write rate (not surcharge)

OUT

$10.00 – $15.00

USD / 1,000,000 token

$10.00 · prompt: <=272000 input tokens

$15.00 · prompt: >272000 input tokens

Performance

Overall capability

71.5/100

Coding
70.1
Reasoning
79.0
Professional work
59.4
Knowledge & language
72.2
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Chess PuzzlesReasoningEpoch AI2026-11-05
Harvey Legal Agent BenchmarkProfessional workVals AI / Harvey2026-11-05
Terminal-Bench 4.0 (Vals rerun)CodingVals AI2026-11-05
CritPtGPT-6.1 Sol (Max)ReasoningArtificial Analysis2026-11-05
MedCodeProfessional workVals AI2026-11-05

Providers

InputOutputCache readCache write
OpenAIgpt-6.1-solOpenai responses-----

ModelRegistry · Catalog updated 2026-11-05