GPT-5.6 Sol

OpenAIProprietary1.05M context

GPT-5.6 Sol is a proprietary model from OpenAI with a 1.05M-token context window. 5 providers list it, from $4.00 per million input tokens and $20.00 per million output tokens (Databricks and 3 others).

Maker
OpenAI
Licence
Proprietary
Context window
1.05M
Providers listed
5
Lowest input, per 1M
$4.00
Lowest output, per 1M
$20.00
OpenAI's own API, per 1M
$4.00 in · $20.00 out
Effort settings
Non-reasoning, Low, Xhigh, Max

Providers serving GPT-5.6 Sol

Cheapest first, by the blended rate of three input tokens to one output token. Prices in US dollars per million tokens, as of 26 Oct 2026.

ProviderInputOutputContextToolsJSON modeOpenAI-compatibleModel ID
Databricks
Promotional price (Databricks passes on OpenAI's promotion, at least through 2026-11-21). Billed in DBUs at $0.07 each.
$4.00$20.001.05MYesYesYesdatabricks-gpt-5-6-sol
Microsoft Azure
$4.00$20.001.05MYesYesNogpt-5.6-sol
OpenAI
Promotional price, available at least through 2026-11-21; OpenAI publishes no regular price.
$4.00$20.001.05MYesYesYesgpt-5.6-sol
Snowflake
Promotional price; Snowflake says it may rise on 2026-11-21. Billed in AI credits at $2.00 each.
$4.00$20.001.05MYesYesYesopenai-gpt-5.6-sol
Amazon Bedrock
$4.40$22.001.05MYesYesNoopenai.gpt-5.6-sol

Benchmark scores

Published scores only, each linked to its source. Compare every model in Bench rankings

BenchmarkDefaultNon-reasoningLowXhighMax
GPQA Diamond
PhD-level scientific reasoning
94.6%v82.8%89.9%—93.5%
MMMU Pro
Visual reasoning
83%v————
CritPt v2
Physics reasoning
74.9%————
τ³-Banking
Agentic tool use (banking)
———46.9%—

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