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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...

β€”
Rank
128K
Context Window
$0.03
Min Input /1M
$0.14
Min Output /1M

Model Info

Model ID openai-gpt-oss-20b
Modality text->text
Context Window 128K tokens
Platforms OR

Usage & Rankings

Rank Unranked
Weekly Usage β€”

Cross-Platform Pricing

Platform Input /1M Output /1M Context Model ID
OR OpenRouter $0.029 $0.140 128K openai/gpt-oss-20b
Input
$0.029
/ 1M tokens
Output
$0.140
/ 1M tokens
Round Trip
$0.17
/ 1M tokens
Value Rating
🟒
🟒 Economy β€” great for high volume

About OpenAI: gpt-oss-20b

OpenAI: gpt-oss-20b is a large language model with a 128K token context window.

The best available input price is $0.029/1M tokens and output price is $0.140/1M tokens, with a round-trip cost of $0.17/1M tokens.