OpenAI: gpt-oss-20b
openai/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...
Modalities
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In / out price
₩53 / ₩228
1M
Context
131.07K
Released
Aug 6, 2025
Pricing
Prices are quoted in Korean won. Changes to the exchange rate or margin show up immediately.
| Input (prompt) | ₩53 / 1M |
| Output (completion) | ₩228 / 1M |
| Cache read | ₩53 / 1M |
| Cache write | — |
1,000 input tokens plus 1,000 output tokens costs about ₩0.2808.