GPT OSS 20B
Lightweight open-source 20B model with reasoning support for efficient inference.
gpt-oss-20bGet API keyContext window
131k
tokens
Max output
33k
tokens
Input
$0.20
per 1M tokens
Output
$0.30
per 1M tokens
Quick start
1curl https://api.vichar.io/v1/chat/completions \2 -H "Authorization: Bearer $VICHAR_API_KEY" \3 -H "Content-Type: application/json" \4 -d '{5 "model": "gpt-oss-20b",6 "messages": [{"role": "user", "content": "Hello"}]7 }'
Supported parameters
- temperature
- max_tokens
- top_p
- frequency_penalty
- presence_penalty
- response_format
- tools
- tool_choice
- reasoning