OpenAI: gpt-oss-120b

Pricing, context window and lifecycle for openai/gpt-oss-120b, tracked from what the vendor publishes.

Price per million tokens

Input	$0.037
Output	$0.170
Max price	$0.170

Facts

Model ID	openai/gpt-oss-120b
Vendor	OpenAI
Token limit (context window)	131,072 tokens
Knowledge cutoff	2024-06-30
End of life	none published

Supported parameters

frequency_penalty, include_reasoning, logit_bias, logprobs, max_tokens, min_p, presence_penalty, reasoning, reasoning_effort, repetition_penalty, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_a, top_k, top_logprobs, top_p

Other OpenAI models

openai/gpt-3.5-turbo $0.500 in / $1.50 out
openai/gpt-3.5-turbo-0613 $1.00 in / $2.00 out
openai/gpt-3.5-turbo-16k $3.00 in / $4.00 out
openai/gpt-3.5-turbo-instruct $1.50 in / $2.00 out
openai/gpt-3.5-turbo:batch $0.250 in / $0.750 out
openai/gpt-4 $30.00 in / $60.00 out
openai/gpt-4-turbo $10.00 in / $30.00 out
openai/gpt-4-turbo-preview $10.00 in / $30.00 out
openai/gpt-4-turbo:batch $5.00 in / $15.00 out
openai/gpt-4.1 $2.00 in / $8.00 out

Change history

Every change we have observed since tracking began.

Detected	Change	Detail
2026-08-22 19:14	Pricing Change	Cache price (read) no longer charged · Input $0.030 -> $0.037 (+23.3%)
2026-08-13 00:37	Pricing Change	Cache price (read) now charged, $0.030 · Input $0.037 -> $0.030 (-18.9%)

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