OpenAI compatible API. Attested gateway. Public status.

xAI: Grok 4.20 vs Google: Gemini 3.5 Flash

Compare xAI: Grok 4.20 and Google: Gemini 3.5 Flash by providers, context, price, and TrustedRouter route support.

Verify gateway

1 URLbase_url migration

100smodels and routes

0prompt 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.

xAI: Grok 4.20Google: Gemini 3.5 Flash

Model idx-ai/grok-4.20google/gemini-3.5-flash

PublisherxAI GrokGemini

Context2,000,000 tokens1,048,576 tokens

Provider routes22

Modes chat chat

xAI: Grok 4.20 routes

Overview2 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

Google: Gemini 3.5 Flash routes

Overview2 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
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="x-ai/grok-4.20",
    messages=messages,
)