O
OpenAI

gpt-oss-120b pricing & price history

reasoningtoolsopenai/gpt-oss-120b

gpt-oss-120b by OpenAI costs $0.15 per 1M input tokens and $0.60 per 1M output tokens, with a 131K token context window.

$0.15Input / 1M tokens
$0.60Output / 1M tokens
131KContext window
11.6Intelligence index · coding 30.4

Price history

$0.000$0.345$0.690 2026-09-24today input /1M output /1M

No price changes since tracking began on 2026-09-24. We check hourly.

Cost calculator

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About gpt-oss-120b

gpt-oss-120b is an open-weight, 117B-parameter Mixture-of-Experts (MoE) language model from OpenAI designed for high-reasoning, agentic, and general-purpose production use cases. It activates 5.1B parameters per forward pass and is optimized...

FAQ

How much does gpt-oss-120b cost?

gpt-oss-120b by OpenAI costs $0.15 per 1M input tokens and $0.60 per 1M output tokens, with a 131K token context window. A typical request with 2,000 input and 500 output tokens costs about $0.0006.

What is the context window of gpt-oss-120b?

gpt-oss-120b supports up to 131,072 tokens of context and up to 65,536 output tokens per request.

Has gpt-oss-120b’s price changed?

No price changes recorded since ModelBank started tracking it on 2026-09-24.

Is gpt-oss-120b being deprecated?

No retirement date has been announced for gpt-oss-120b as of 2026-09-24.

What are cheaper alternatives to gpt-oss-120b?

Cheaper options include gpt-oss-20b ($0.018/$0.09), Gemma 3 12B ($0.05/$0.15), Nemotron 3 Nano 30B A3B ($0.05/$0.20), Ling 3.0 Flash VL ($0.06/$0.18).