OpenAI compatible API · Attested · Public status

Google: Gemma 4 31B vs Kimi K3 Fast on Fireworks

Google: Gemma 4 31B vs Kimi K3 Fast on Fireworks: 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 published input-plus-output rate, more Credits provider routes and the lower measured p50 time to first token. Kimi K3 Fast on Fireworks has the larger context window.

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

$28.485/1MKimi K3 Fast on Fireworks cheapest route

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

1114 msKimi K3 Fast on Fireworks fastest measured p50 TTFT via fireworks

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 31BKimi K3 Fast on Fireworks

Model idgoogle/gemma-4-31b-itmoonshotai/kimi-k3-fast

Publisher Google AI Studio Kimi

AI IQ IQ 101#99 —

Context262,144 tokens1,048,576 tokens

Credits provider routes161

Cheapest route$0.45365/1M$28.485/1M

Cached input$0.03798/1M to $0.26375/1M$0.47475/1M

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT962 ms via friendli1114 ms via fireworks

Highest measured throughput271 tok/s via tinfoilnot enough data

Recent route uptime range50.00% to 100.00%100.00%

Modes chat chat

Google: Gemma 4 31B routes

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

Kimi K3 Fast on Fireworks 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="google/gemma-4-31b-it",
    messages=messages,
)

Questions

Which should I use, Google: Gemma 4 31B or Kimi K3 Fast on Fireworks?

Is Google: Gemma 4 31B or Kimi K3 Fast on Fireworks cheaper?

The current cheapest TrustedRouter route is $0.45365/1M for Google: Gemma 4 31B and $28.485/1M for Kimi K3 Fast on Fireworks. The comparison uses current catalog prices and updates as provider pricing changes.

Is Google: Gemma 4 31B or Kimi K3 Fast on Fireworks faster?

Current measured p50 time to first token is 962 ms for Google: Gemma 4 31B and 1114 ms for Kimi K3 Fast on Fireworks. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Google: Gemma 4 31B and Kimi K3 Fast on Fireworks 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 moonshotai/kimi-k3-fast. This makes side-by-side evals possible without maintaining two provider integrations.