gpt-oss-20b pricing & price history
gpt-oss-20b by OpenAI costs $0.018 per 1M input tokens and $0.09 per 1M output tokens, with a 131K token context window.
Price history
No price changes since tracking began on 2026-09-24. We check hourly.
Cost calculator
Cheaper alternatives to gpt-oss-20b
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S Space Bunny Alpha Stealth | Free | Free | 1M | — | compare |
G Lyria 3 Pro Preview Google | Free | Free | 1M | — | compare |
G Lyria 3 Clip Preview Google | Free | Free | 1M | — | compare |
M Mistral Nemo Mistral AI | $0.019 | $0.03 | 131K | — | compare |
I Ling 3.0 Flash inclusionAI | $0.021 | $0.063 | 262K | — | compare |
About gpt-oss-20b
gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...
FAQ
How much does gpt-oss-20b cost?
gpt-oss-20b by OpenAI costs $0.018 per 1M input tokens and $0.09 per 1M output tokens, with a 131K token context window. A typical request with 2,000 input and 500 output tokens costs about $0.0001.
What is the context window of gpt-oss-20b?
gpt-oss-20b supports up to 131,072 tokens of context and up to 32,768 output tokens per request.
Has gpt-oss-20b’s price changed?
No price changes recorded since ModelBank started tracking it on 2026-09-24.
Is gpt-oss-20b being deprecated?
No retirement date has been announced for gpt-oss-20b as of 2026-09-24.
What are cheaper alternatives to gpt-oss-20b?
Cheaper options include Space Bunny Alpha (Free/Free), Lyria 3 Pro Preview (Free/Free), Lyria 3 Clip Preview (Free/Free), Mistral Nemo ($0.019/$0.03).