OpenAI compatible API · Attested · Public status

OpenAI: gpt-oss-120b vs grok-4-1-fast-non-reasoning

gpt-oss-120b vs grok-4-1-fast-non-reasoning: 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 OpenAI: gpt-oss-120b has the larger context window. Current TrustedRouter probes show OpenAI: gpt-oss-120b with the lower p50 TTFT.

$0.218385/1MOpenAI: gpt-oss-120b cheapest route

$0.7385/1Mgrok-4-1-fast-non-reasoning cheapest route

1164 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via baseten

2792 msgrok-4-1-fast-non-reasoning fastest measured p50 TTFT via azure

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.

OpenAI: gpt-oss-120bgrok-4-1-fast-non-reasoning

Model idopenai/gpt-oss-120bx-ai/grok-4.1-fast-non-reasoning

Publisher OpenAI xAI Grok

AI IQ IQ 105#63 —

Context131,072 tokens0 tokens

Provider routes311

Cheapest route$0.218385/1M$0.7385/1M

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT1164 ms via baseten2792 ms via azure

Highest measured throughput215 tok/s via nebiusnot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

OpenAI: gpt-oss-120b routes

Overview31 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

grok-4-1-fast-non-reasoning routes

Overview1 endpoints

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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="openai/gpt-oss-120b",
    messages=messages,
)

Questions

Which should I use, OpenAI: gpt-oss-120b or grok-4-1-fast-non-reasoning?

Is OpenAI: gpt-oss-120b or grok-4-1-fast-non-reasoning cheaper?

The current cheapest TrustedRouter route is $0.218385/1M for OpenAI: gpt-oss-120b and $0.7385/1M for grok-4-1-fast-non-reasoning. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: gpt-oss-120b or grok-4-1-fast-non-reasoning faster?

Current measured p50 time to first token is 1164 ms for OpenAI: gpt-oss-120b and 2792 ms for grok-4-1-fast-non-reasoning. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: gpt-oss-120b and grok-4-1-fast-non-reasoning with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between openai/gpt-oss-120b and x-ai/grok-4.1-fast-non-reasoning. This makes side-by-side evals possible without maintaining two provider integrations.