OpenAI compatible API · Attested · Public status

Claude Sonnet 4.6 Coding vs OpenAI: gpt-oss-120b

Claude Sonnet 4.6 Coding vs gpt-oss-120b: compare current API pricing, context, provider routes, privacy, p50 latency, and OpenAI-compatible access.

Verify gateway

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

Monthly evidence

OpenAI: gpt-oss-120b has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-120b has more provider fallback routes, while Claude Sonnet 4.6 Coding has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$18.99/1MClaude Sonnet 4.6 Coding cheapest route

$0.211/1MOpenAI: gpt-oss-120b cheapest route

not enough dataClaude Sonnet 4.6 Coding fastest measured p50 TTFT

842 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via sambanova

Prices and live route measurements can change. Use the monthly reports when you need a stable evidence window, then run a small task-specific eval before choosing a production default.

Claude Sonnet 4.6 CodingOpenAI: gpt-oss-120b

Model idanthropic/claude-sonnet-4.6-codingopenai/gpt-oss-120b

Publisher Anthropic OpenAI

AI IQ — IQ 105#63

Context200,000 tokens131,072 tokens

Provider routes035

Cheapest route$18.99/1M$0.211/1M

Privacy postureprovider posture varieshas provider E2EE route

Fastest measured p50 TTFTnot enough data842 ms via sambanova

Highest measured throughputnot enough datanot enough data

Recent route uptime rangenot enough data0.00% to 100.00%

Modes chat messages chat

Claude Sonnet 4.6 Coding routes

Overview0 endpoints

OpenAI: gpt-oss-120b routes

Overview35 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

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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-sonnet-4.6-coding",
    messages=messages,
)

Questions

Which should I use, Claude Sonnet 4.6 Coding or OpenAI: gpt-oss-120b?

Is Claude Sonnet 4.6 Coding or OpenAI: gpt-oss-120b cheaper?

The current cheapest TrustedRouter route is $18.99/1M for Claude Sonnet 4.6 Coding and $0.211/1M for OpenAI: gpt-oss-120b. The comparison uses current catalog prices and updates as provider pricing changes.

Is Claude Sonnet 4.6 Coding or OpenAI: gpt-oss-120b faster?

Current measured p50 time to first token is not enough data for Claude Sonnet 4.6 Coding and 842 ms for OpenAI: gpt-oss-120b. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Claude Sonnet 4.6 Coding and OpenAI: gpt-oss-120b with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between anthropic/claude-sonnet-4.6-coding and openai/gpt-oss-120b. This makes side-by-side evals possible without maintaining two provider integrations.