OpenAI compatible API · Attested · Public status
Claude Opus 5 vs OpenAI: gpt-oss-120b
Compare Claude Opus 5 and OpenAI: gpt-oss-120b by providers, context, price, and TrustedRouter route support.
Onebase URL to migrate
100sof models and routes
0prompt or output logs. Always.
Compare routesProviders, price, context, and policy posture in one view.
Use auto when uptime mattersKeep a primary model and let fallback handle provider failures.
Same API shapeUse the OpenAI client and set the model you want.
Practical read
OpenAI: gpt-oss-120b has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-120b has more provider fallback routes, while Claude Opus 5 has the larger context window. Current TrustedRouter probes show OpenAI: gpt-oss-120b with the lower p50 TTFT.
$31.5/1MClaude Opus 5 cheapest route
$0.21735/1MOpenAI: gpt-oss-120b cheapest route
3238 msClaude Opus 5 measured p50 TTFT
697 msOpenAI: gpt-oss-120b measured p50 TTFT
Claude Opus 5OpenAI: gpt-oss-120b
Model id
anthropic/claude-opus-5openai/gpt-oss-120b
PublisherAnthropicOpenAI
Context1,000,000 tokens131,072 tokens
Provider routes524
Cheapest route$31.5/1M$0.21735/1M
Privacy postureprovider posture varieshas provider E2EE route
Modes
chat
messages
chat
Claude Opus 5 routes
Production choice
Pick a default model. Keep fallback enabled.
TrustedRouter is useful when you know the model you want, but still need provider rollover, budget limits, usage records, and a prompt path you can verify.
OpenAI clientPython
client = OpenAI(
base_url="https://api.trustedrouter.com/v1",
api_key="sk-tr-v1-..."
)
response = client.chat.completions.create(
model="anthropic/claude-opus-5",
messages=messages,
)