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OpenAI: gpt-oss-120b vs apertus-70b

Try both on us. Starter credit covers your first requests, then one key routes gpt-oss-120b and apertus-70b. 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, the larger context window and the lower measured p50 time to first token.

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

$2.962968/1Mapertus-70b cheapest route

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

1406 msapertus-70b fastest measured p50 TTFT via regolo

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-120bapertus-70b

Model idopenai/gpt-oss-120bswiss-ai/apertus-70b-instruct

Publisher OpenAI Swiss AI

AI IQ IQ 98#133 —

Context131,072 tokens30,000 tokens

Credits provider routes241

Cheapest route$0.211/1M$2.962968/1M

Cached input$0.015825/1M to $0.1055/1MNot published

Privacy posturehas Confidential route (E2EE + ZDR)has ZDR route

Fastest measured p50 TTFT455 ms via fireworks1406 ms via regolo

Highest measured throughputnot enough datanot 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

apertus-70b routes

Overview1 Credits routes

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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 apertus-70b?

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

Is OpenAI: gpt-oss-120b or apertus-70b cheaper?

The current cheapest TrustedRouter route is $0.211/1M for OpenAI: gpt-oss-120b and $2.962968/1M for apertus-70b. The comparison uses current catalog prices and updates as provider pricing changes.

Is OpenAI: gpt-oss-120b or apertus-70b faster?

Current measured p50 time to first token is 455 ms for OpenAI: gpt-oss-120b and 1406 ms for apertus-70b. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test OpenAI: gpt-oss-120b and apertus-70b 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 swiss-ai/apertus-70b-instruct. This makes side-by-side evals possible without maintaining two provider integrations.