OpenAI / openai/gpt-oss-20b

GPT-OSS 20B - access through LLMTR

GPT-OSS 20B is OpenAI's small open-weight model. It suits low-latency chat, classification, data transformation, function calling, and light automation that needs JSON output. It is offered free with a daily usage quota.

Technical specifications

Canonical ID	`openai/gpt-oss-20b`
Provider	OpenAI
Context window	131,072 tokens
Operations	CHAT_COMPLETIONS
Modalities	text

Pricing

A 6% platform margin applies to credit top-ups; model usage prices are not separately marked up.

Operation	Metric	Unit	Price
CHAT_COMPLETIONS	INPUT_TEXT	PER_1M_TOKENS	Not available
CHAT_COMPLETIONS	OUTPUT_TEXT	PER_1M_TOKENS	Not available

Example usage

With existing OpenAI SDK flows, change only the base URL and model identifier.

curl https://llmtr.com/v1/chat/completions \
  -H "Authorization: Bearer llmtr-your_key" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-oss-20b","messages":[{"role":"user","content":"Hello"}]}'

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