OpenAI compatible API · Attested · Public status

Google: Gemma 4 31B vs OpenAI: GPT-5.6 Terra

Compare Google: Gemma 4 31B and OpenAI: GPT-5.6 Terra by providers, context, price, and TrustedRouter route support.

Verify gateway

Onebase URL to migrate

100sof models and routes

Noneprompt logs by default

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 4 31B has the lower cheapest prompt+completion route on TrustedRouter. Google: Gemma 4 31B has more provider fallback routes, while OpenAI: GPT-5.6 Terra has the larger context window. Current TrustedRouter probes show Google: Gemma 4 31B with the lower p50 TTFT.

$0.5355/1MGoogle: Gemma 4 31B cheapest route

$18.375/1MOpenAI: GPT-5.6 Terra cheapest route

896 msGoogle: Gemma 4 31B measured p50 TTFT

1837 msOpenAI: GPT-5.6 Terra measured p50 TTFT

Google: Gemma 4 31BOpenAI: GPT-5.6 Terra

Model idgoogle/gemma-4-31b-itopenai/gpt-5.6-terra

PublisherGoogle AI StudioOpenAI

AI IQ IQ 101#65 IQ 131#4

Context262,144 tokens1,050,000 tokens

Provider routes236

Cheapest route$0.5355/1M$18.375/1M

Privacy posturehas provider E2EE routeprovider posture varies

Modes chat chat

Google: Gemma 4 31B routes

Overview23 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

OpenAI: GPT-5.6 Terra routes

Overview6 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://api.trustedrouter.com/v1",
    api_key="sk-tr-v1-..."
)

response = client.chat.completions.create(
    model="google/gemma-4-31b-it",
    messages=messages,
)