Alex Getmanearly AI signals

GPT-OSS 120B

OpenAI

ReleasedUpdated
Context window
131K
131,072 tokens
Max output
131K
131,072 tokens
Input / Output
text → text

API pricing

USD / 1M tokens

InputOutputCached input
  • $0.15
openrouter
  • $0.60
openrouter
  • $0.075
openrouter

Timeline

  1. · Open weights · evidence link · evidence link · evidence link
  2. · Weights version · evidence link
Input / output price · USD / 1M tokens
ModelEvidence linksInput / output price
openai/gpt-oss-120b
standard
openrouter$0.15 / $0.60
openai/gpt-oss-120b:batch
batch
openrouter$0.0296 / $0.136
openai/gpt-oss-120b
standard
vercel-gateway$0.10 / $0.50
Specifications

GPT-OSS 120B is a model from OpenAI with open weights, first recorded on 17 Sep 2026; its release date is not established. The context window is 131,072 tokens. The maximum output is 131,072 tokens. Pricing is $0.15 per million input tokens and $0.60 per million output tokens.

Context window
131,072
Max output
131,072
Input
text
Output
text
Weights
Open
Input · USD / 1M tokens
$0.15
Output · USD / 1M tokens
$0.60
Cached input · USD / 1M tokens
$0.075

Questions

What is the context window of GPT-OSS 120B?

The context window is 131,072 tokens. The maximum output is 131,072 tokens.

How much does GPT-OSS 120B cost?

Pricing is $0.15 per million input tokens and $0.60 per million output tokens. Cached input is $0.075 per million.

Are the weights of GPT-OSS 120B publicly available?

Yes. OpenAI publishes the weights.

When was GPT-OSS 120B released?

Its release date is not established. Signal Forge first recorded it on 17 Sep 2026.