OpenAI compatible API · Attested · Public status

Google: Gemma 4 31B vs sonar

Google: Gemma 4 31B vs sonar: 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 the lower cheapest prompt+completion route on TrustedRouter. Google: Gemma 4 31B has more provider fallback routes, while Google: Gemma 4 31B has the larger context window. Current TrustedRouter probes show Google: Gemma 4 31B with the lower p50 TTFT.

$0.4642/1MGoogle: Gemma 4 31B cheapest route

$2.90125/1Msonar cheapest route

807 msGoogle: Gemma 4 31B fastest measured p50 TTFT via lightning

2418 mssonar fastest measured p50 TTFT via perplexity

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 31Bsonar

Model idgoogle/gemma-4-31b-itperplexity/sonar

Publisher Google AI Studio Perplexity

AI IQ IQ 101#80 —

Context262,144 tokens0 tokens

Provider routes301

Cheapest route$0.4642/1M$2.90125/1M

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT807 ms via lightning2418 ms via perplexity

Highest measured throughput110 tok/s via sambanovanot enough data

Recent route uptime range57.14% to 100.00%100.00%

Modes chat chat

Google: Gemma 4 31B routes

Overview30 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

sonar 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="google/gemma-4-31b-it",
    messages=messages,
)

Questions

Which should I use, Google: Gemma 4 31B or sonar?

Is Google: Gemma 4 31B or sonar cheaper?

The current cheapest TrustedRouter route is $0.4642/1M for Google: Gemma 4 31B and $2.90125/1M for sonar. The comparison uses current catalog prices and updates as provider pricing changes.

Is Google: Gemma 4 31B or sonar faster?

Current measured p50 time to first token is 807 ms for Google: Gemma 4 31B and 2418 ms for sonar. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Google: Gemma 4 31B and sonar 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 perplexity/sonar. This makes side-by-side evals possible without maintaining two provider integrations.