GPT-5.4 nano

OpenAIProprietary400k context

GPT-5.4 nano is a proprietary model from OpenAI with a 400k-token context window. 3 providers list it, all at $0.20 per million input tokens and $1.25 per million output tokens.

Maker
OpenAI
Licence
Proprietary
Context window
400k
Providers listed
3
Lowest input, per 1M
$0.20
Lowest output, per 1M
$1.25
OpenAI's own API, per 1M
$0.20 in · $1.25 out
Effort settings
Non-reasoning, Low, High, Xhigh

Providers serving GPT-5.4 nano

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
Billed in DBUs; converted at Databricks' $0.07 per DBU (AWS).
$0.20$1.25400kYesYesYesdatabricks-gpt-5-4-nano
Microsoft Azure
$0.20$1.25400kYesYesNogpt-5.4-nano
OpenAI
$0.20$1.25400kYesYesYesgpt-5.4-nano

Benchmark scores

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

BenchmarkNon-reasoningLowHighXhigh
GPQA Diamond
PhD-level scientific reasoning
55.6%72.2%78.5%82.8%v
MMMU Pro
Visual reasoning
———66.1%v
Humanity's Last Exam
Reasoning & knowledge
———24.3%v
τ²-Bench Telecom
Agentic tool use
———92.5%v

More from OpenAI