Free to start

Google: Gemma 4 31B vs OpenAI: gpt-oss-120b

Try both on us. Starter credit covers your first requests, then one key routes Gemma 4 31B and gpt-oss-120b. 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

Google: Gemma 4 31B has the larger context window and the lower measured p50 time to first token. gpt-oss-120b has the lower published input-plus-output rate and more Credits provider routes.

$0.45365/1MGoogle: Gemma 4 31B cheapest route

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

665 msGoogle: Gemma 4 31B fastest measured p50 TTFT via crusoe

1033 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via cerebras

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.

Google: Gemma 4 31BOpenAI: gpt-oss-120b

Model idgoogle/gemma-4-31b-itopenai/gpt-oss-120b

Publisher Google AI Studio OpenAI

AI IQ IQ 101#116 IQ 98#132

Context262,144 tokens131,072 tokens

Credits provider routes1624

Cheapest route$0.45365/1M$0.211/1M

Cached input$0.03798/1M to $0.26375/1M$0.015825/1M to $0.1055/1M

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

Fastest measured p50 TTFT665 ms via crusoe1033 ms via cerebras

Highest measured throughput146 tok/s via crusoe132 tok/s via amazon-bedrock

Recent route uptime range0.00% to 100.00%88.31% to 100.00%

Modes chat chat

Google: Gemma 4 31B routes

Overview16 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

OpenAI: gpt-oss-120b routes

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

Related comparisons

Browse every comparison

OpenAI: gpt-oss-120b vs Z.ai: GLM 5.357 combined provider routes
OpenAI: gpt-oss-120b vs Z.ai: GLM 5.256 combined provider routes
OpenAI: gpt-oss-120b vs Z.ai: GLM 5.3 Flash56 combined provider routes
MoonshotAI: Kimi K3 vs OpenAI: gpt-oss-120b52 combined provider routes
DeepSeek: DeepSeek V4 Flash 0731 vs OpenAI: gpt-oss-120b50 combined provider routes
Google: Gemma 4 31B vs Z.ai: GLM 5.349 combined provider routes
DeepSeek: DeepSeek V4.1 Flash vs OpenAI: gpt-oss-120b48 combined provider routes
Google: Gemma 4 31B vs Z.ai: GLM 5.248 combined provider 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="google/gemma-4-31b-it",
    messages=messages,
)

Questions

Which should I use, Google: Gemma 4 31B or OpenAI: gpt-oss-120b?

Google: Gemma 4 31B has the larger context window and the lower measured p50 time to first token. gpt-oss-120b has the lower published input-plus-output rate and more Credits provider routes.

Is Google: Gemma 4 31B or OpenAI: gpt-oss-120b cheaper?

The current cheapest TrustedRouter route is $0.45365/1M for Google: Gemma 4 31B and $0.211/1M for OpenAI: gpt-oss-120b. The comparison uses current catalog prices and updates as provider pricing changes.

Is Google: Gemma 4 31B or OpenAI: gpt-oss-120b faster?

Current measured p50 time to first token is 665 ms for Google: Gemma 4 31B and 1033 ms for OpenAI: gpt-oss-120b. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Google: Gemma 4 31B 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 google/gemma-4-31b-it and openai/gpt-oss-120b. This makes side-by-side evals possible without maintaining two provider integrations.