OpenAI compatible API · Attested · Public status

Google: Gemma 3 12B vs OpenAI: gpt-oss-120b

Compare Google: Gemma 3 12B and OpenAI: gpt-oss-120b by providers, context, price, and TrustedRouter route support.

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

Google: Gemma 3 12B has the lower cheapest prompt+completion route on TrustedRouter. OpenAI: gpt-oss-120b has more provider fallback routes, while Google: Gemma 3 12B has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$0.1575/1MGoogle: Gemma 3 12B cheapest route

$0.21735/1MOpenAI: gpt-oss-120b cheapest route

not enough dataGoogle: Gemma 3 12B measured p50 TTFT

not enough dataOpenAI: gpt-oss-120b measured p50 TTFT

Google: Gemma 3 12BOpenAI: gpt-oss-120b

Model idgoogle/gemma-3-12b-itopenai/gpt-oss-120b

PublisherGoogle AI StudioOpenAI

AI IQ — IQ 105#52

Context131,072 tokens131,072 tokens

Provider routes424

Cheapest route$0.1575/1M$0.21735/1M

Privacy postureprovider posture varieshas provider E2EE route

Modes chat chat

Google: Gemma 3 12B routes

Overview4 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

OpenAI: gpt-oss-120b routes

Overview24 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

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://gchircrcif.eu-west-3.awsapprunner.com/v1",
    api_key="sk-tr-v1-..."
)

response = client.chat.completions.create(
    model="google/gemma-3-12b-it",
    messages=messages,
)