OpenAI: gpt-oss-20b (openai/gpt-oss-20b) is a chat model from openrouter with a 131.1K-token context window; open-weight; capabilities tools, reasoning; input text; output text.
131.1KContext
32.8KMax output
$0.02$ / 1M in
Pricing
Input
$0.02 / 1M tokens
Output
$0.1 / 1M tokens
Currency
USD
Note
Indicative US list price — verify with the vendor.
Indicative US list price — a reference only, verify with the vendor. Source: litellm. Last verified 2026-07-24.