gpt-oss-20b (free)Archive and alternatives
gpt-oss-20b (free) is no longer available on OpenRouter. Explore a current alternative below.
Released August 5, 2025
Specifications
gpt-oss-20b (free) at a glance
Context
131.1K tokens
Max output
32.8K tokens
Input
Text
Output
Text
Input price
$0.0000 / 1M
Output price
$0.0000 / 1M
Knowledge cutoff
2024-06-30
Capabilities
What it is good at
Catalog capabilities
- Generates text responses
- Supports tool calling
- Supports structured outputs
Good for
Benchmarks
Catalog data, not Krater benchmarks.
Coding index score
20.7
Agentic index score
3.1
Intelligence index score
15.2
Design Arena dataviz rank
#107
Design Arena website rank
#122
Compare
Compare gpt-oss-20b (free)
gpt-oss-20b (free) vs GPT-3.5 Turbo
GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks.
Open comparisongpt-oss-20b (free) vs GPT-3.5 Turbo (older v0613)
GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks.
Open comparisongpt-oss-20b (free) vs GPT-3.5 Turbo 16k
This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up
Open comparisonFAQ
Questions about gpt-oss-20b (free)
Clear answers based on the model catalog and Krater access.