Trismegistus
Trismegistus
OpenAIBudget

GPT-OSS 120B

openai/gpt-oss-120b

Reliable low-cost open model; routes via the gateway.

Context
131K
tokens
Tier
Budget
billed per use
Latency class
medium
typical speed
Billing
credits
tier multiplier
texttoolsreasoningstructured

OpenAI-compatible — point any OpenAI SDK at our base URL and use the model id above.

curl https://trismegistus.app/api/v1/chat/completions \
  -H "Authorization: Bearer $TRISMEGISTUS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-oss-120b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'