OpenAI compatible API · Attested · Public status
Google: Gemini 3 Flash Preview vs OpenAI: GPT-5 Nano
Compare Google: Gemini 3 Flash Preview and OpenAI: GPT-5 Nano by providers, context, price, and TrustedRouter route support.
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
OpenAI: GPT-5 Nano has the lower cheapest prompt+completion route on TrustedRouter. Google: Gemini 3 Flash Preview has more provider fallback routes, while Google: Gemini 3 Flash Preview has the larger context window. Current TrustedRouter probes show Google: Gemini 3 Flash Preview with the lower p50 TTFT.
$3.675/1MGoogle: Gemini 3 Flash Preview cheapest route
$0.4725/1MOpenAI: GPT-5 Nano cheapest route
2432 msGoogle: Gemini 3 Flash Preview measured p50 TTFT
5143 msOpenAI: GPT-5 Nano measured p50 TTFT
Google: Gemini 3 Flash PreviewOpenAI: GPT-5 Nano
Model id
google/gemini-3-flash-previewopenai/gpt-5-nano
PublisherGoogle AI StudioOpenAI
Context1,048,576 tokens400,000 tokens
Provider routes64
Cheapest route$3.675/1M$0.4725/1M
Privacy postureprovider posture variesprovider posture varies
Modes
chat
chat
Google: Gemini 3 Flash Preview routes
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-flash-preview",
messages=messages,
)