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OpenAI: gpt-oss-120b vs SpaceXAI: Grok Build 0.1

Try both on us. Starter credit covers your first requests, then one key routes gpt-oss-120b and Grok Build 0.1. Switch by changing the model name.

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

gpt-oss-120b has the lower published input-plus-output rate, more Credits provider routes and the lower measured p50 time to first token. SpaceXAI: Grok Build 0.1 has the larger context window.

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

$3.165/1MSpaceXAI: Grok Build 0.1 cheapest route

455 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via fireworks

2189 msSpaceXAI: Grok Build 0.1 fastest measured p50 TTFT via grok

The price comparison adds each route's rate for one million input tokens and one million output tokens; your cost depends on your input/output mix. 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-120bSpaceXAI: Grok Build 0.1

Model idopenai/gpt-oss-120bx-ai/grok-build-0.1

Publisher OpenAI xAI Grok

AI IQ IQ 98#133 —

Context131,072 tokens256,000 tokens

Credits provider routes242

Cheapest route$0.211/1M$3.165/1M

Cached input$0.015825/1M to $0.1055/1M$0.211/1M to $0.422/1M

Privacy posturehas Confidential route (E2EE + ZDR)provider posture varies

Fastest measured p50 TTFT455 ms via fireworks2189 ms via grok

Highest measured throughput290 tok/s via cerebrasnot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

OpenAI: gpt-oss-120b routes

Overview24 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

SpaceXAI: Grok Build 0.1 routes

Overview2 Credits routes
PricingInput, cached input, and output 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="openai/gpt-oss-120b",
    messages=messages,
)

Questions

Which should I use, OpenAI: gpt-oss-120b or SpaceXAI: Grok Build 0.1?

gpt-oss-120b has the lower published input-plus-output rate, more Credits provider routes and the lower measured p50 time to first token. SpaceXAI: Grok Build 0.1 has the larger context window.

Is OpenAI: gpt-oss-120b or SpaceXAI: Grok Build 0.1 cheaper?

The current cheapest TrustedRouter route is $0.211/1M for OpenAI: gpt-oss-120b and $3.165/1M for SpaceXAI: Grok Build 0.1. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: gpt-oss-120b or SpaceXAI: Grok Build 0.1 faster?

Current measured p50 time to first token is 455 ms for OpenAI: gpt-oss-120b and 2189 ms for SpaceXAI: Grok Build 0.1. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: gpt-oss-120b and SpaceXAI: Grok Build 0.1 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-build-0.1. This makes side-by-side evals possible without maintaining two provider integrations.