OpenAI compatible API · Attested · Public status

Google: Gemma 4 31B vs OpenAI: gpt-oss-20b

Google: Gemma 4 31B vs gpt-oss-20b: 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

Google: Gemma 4 31B has more Credits provider routes, the larger context window and the lower measured p50 time to first token. gpt-oss-20b has the lower published input-plus-output rate.

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

$0.1266/1MOpenAI: gpt-oss-20b cheapest route

384 msGoogle: Gemma 4 31B fastest measured p50 TTFT via friendli

1511 msOpenAI: gpt-oss-20b fastest measured p50 TTFT via databricks

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-20b

Model idgoogle/gemma-4-31b-itopenai/gpt-oss-20b

Publisher Google AI Studio OpenAI

AI IQ IQ 101#109 IQ 94#138

Context262,144 tokens131,072 tokens

Credits provider routes1612

Cheapest route$0.45365/1M$0.1266/1M

Cached input$0.03798/1M to $0.26375/1M$0.0211/1M to $0.030068/1M

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

Fastest measured p50 TTFT384 ms via friendli1511 ms via databricks

Highest measured throughput225 tok/s via io-netnot enough data

Recent route uptime range100.00%100.00%

Modes chat chat decide

Google: Gemma 4 31B routes

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

OpenAI: gpt-oss-20b routes

Overview12 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

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OpenAI: gpt-oss-20b vs Z.ai: GLM 5.243 combined provider routes
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DeepSeek: DeepSeek V4 Flash 0731 vs Google: Gemma 4 31B42 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-20b?

Google: Gemma 4 31B has more Credits provider routes, the larger context window and the lower measured p50 time to first token. gpt-oss-20b has the lower published input-plus-output rate.

Is Google: Gemma 4 31B or OpenAI: gpt-oss-20b cheaper?

The current cheapest TrustedRouter route is $0.45365/1M for Google: Gemma 4 31B and $0.1266/1M for OpenAI: gpt-oss-20b. The comparison uses current catalog prices and updates as provider pricing changes.

Is Google: Gemma 4 31B or OpenAI: gpt-oss-20b faster?

Current measured p50 time to first token is 384 ms for Google: Gemma 4 31B and 1511 ms for OpenAI: gpt-oss-20b. 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-20b 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-20b. This makes side-by-side evals possible without maintaining two provider integrations.