OpenAI compatible API · Attested · Public status

Google: Gemini 3.6 Flash vs OpenAI: GPT-4o

Google: Gemini 3.6 Flash vs GPT-4o: 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: Gemini 3.6 Flash has the lower published input-plus-output rate and the larger context window. Both have 2 Credits provider routes. There is not enough recent probe data to compare speed.

$4.7475/1MGoogle: Gemini 3.6 Flash cheapest route

$13.1875/1MOpenAI: GPT-4o cheapest route

1631 msGoogle: Gemini 3.6 Flash fastest measured p50 TTFT via google-ai-studio

not enough dataOpenAI: GPT-4o fastest measured p50 TTFT

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: Gemini 3.6 FlashOpenAI: GPT-4o

Model idgoogle/gemini-3.6-flashopenai/gpt-4o

Publisher Google AI Studio OpenAI

AI IQ IQ 122#20 IQ 81#133

Context1,048,576 tokens128,000 tokens

Credits provider routes22

Cheapest route$4.7475/1M$13.1875/1M

Cached input$0.079125/1M$1.31875/1M

Privacy posturehas ZDR routehas ZDR route

Fastest measured p50 TTFT1631 ms via google-ai-studionot enough data

Highest measured throughput52 tok/s via google-vertexnot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

Google: Gemini 3.6 Flash routes

Overview2 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

OpenAI: GPT-4o routes

Overview2 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

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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/gemini-3.6-flash",
    messages=messages,
)

Questions

Which should I use, Google: Gemini 3.6 Flash or OpenAI: GPT-4o?

Google: Gemini 3.6 Flash has the lower published input-plus-output rate and the larger context window. Both have 2 Credits provider routes. There is not enough recent probe data to compare speed.

Is Google: Gemini 3.6 Flash or OpenAI: GPT-4o cheaper?

The current cheapest TrustedRouter route is $4.7475/1M for Google: Gemini 3.6 Flash and $13.1875/1M for OpenAI: GPT-4o. The comparison uses current catalog prices and updates as provider pricing changes.

Is Google: Gemini 3.6 Flash or OpenAI: GPT-4o faster?

Current measured p50 time to first token is 1631 ms for Google: Gemini 3.6 Flash and not enough data for OpenAI: GPT-4o. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Google: Gemini 3.6 Flash and OpenAI: GPT-4o with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between google/gemini-3.6-flash and openai/gpt-4o. This makes side-by-side evals possible without maintaining two provider integrations.