gpt-oss-120b

reasoning

\

Intelligence

Reasoning

Speed

Context

131K

Max output

131K

Input price

$0.35/1M tokens

Output price

$0.75/1M tokens

Capabilities

vision

tool call

structured output

reasoning

json mode

streaming

fine tuning

batch

Details

ProviderVercel AI Gateway

CreatorOpenAI

Statusactive

Input modalitiestext

Output modalitiestext

Knowledge cutoff2024-05

Release date—

Deprecation date—

Typereasoning

Reasoning tokensYes

Max input—

Sourceofficial

Last updated2026-03-21

Pricing

Input

$0.35

Output

$0.75

Cache write

—

Cache read

—

Batch in

—

Batch out

—

Family Comparison: gpt-oss

Model	Perf	Speed	Context	Max out	Input	Output
gpt-oss-20bRTS	—	—	131K	—	$0.07	$0.3
gpt-oss-safeguard-20bRTS	—	—	131K	—	$0.07	$0.3
gpt-oss-120bRTS	—	—	131K	—	$0.35	$0.75

API

GET/v1/models/vercel/openai/gpt-oss-120b