OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Flash 0731 vs Google: Gemini 3.1 Flash Lite

DeepSeek V4 Flash 0731 vs Google: Gemini 3.1 Flash Lite: 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

DeepSeek V4 Flash 0731 has the lower published input-plus-output rate, more Credits provider routes and the lower measured p50 time to first token. Their context windows are the same size.

$0.142425/1MDeepSeek: DeepSeek V4 Flash 0731 cheapest route

$1.84625/1MGoogle: Gemini 3.1 Flash Lite cheapest route

1211 msDeepSeek: DeepSeek V4 Flash 0731 fastest measured p50 TTFT via inceptron

1326 msGoogle: Gemini 3.1 Flash Lite fastest measured p50 TTFT via google-vertex

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.

DeepSeek: DeepSeek V4 Flash 0731Google: Gemini 3.1 Flash Lite

Model iddeepseek/deepseek-v4-flash-0731google/gemini-3.1-flash-lite

Publisher DeepSeek Google AI Studio

AI IQ — IQ 105#87

Context1,048,576 tokens1,048,576 tokens

Credits provider routes274

Cheapest route$0.142425/1M$1.84625/1M

Cached input$0.01/1M to $0.120059/1M$0.026375/1M

Privacy posturehas Confidential route (E2EE + ZDR)has ZDR route

Fastest measured p50 TTFT1211 ms via inceptron1326 ms via google-vertex

Highest measured throughputnot enough datanot enough data

Recent route uptime range98.45% to 100.00%100.00%

Modes chat chat decide

DeepSeek: DeepSeek V4 Flash 0731 routes

Overview27 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Google: Gemini 3.1 Flash Lite routes

Overview4 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="deepseek/deepseek-v4-flash-0731",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.1 Flash Lite?

DeepSeek V4 Flash 0731 has the lower published input-plus-output rate, more Credits provider routes and the lower measured p50 time to first token. Their context windows are the same size.

Is DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.1 Flash Lite cheaper?

The current cheapest TrustedRouter route is $0.142425/1M for DeepSeek: DeepSeek V4 Flash 0731 and $1.84625/1M for Google: Gemini 3.1 Flash Lite. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.1 Flash Lite faster?

Current measured p50 time to first token is 1211 ms for DeepSeek: DeepSeek V4 Flash 0731 and 1326 ms for Google: Gemini 3.1 Flash Lite. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek: DeepSeek V4 Flash 0731 and Google: Gemini 3.1 Flash Lite with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between deepseek/deepseek-v4-flash-0731 and google/gemini-3.1-flash-lite. This makes side-by-side evals possible without maintaining two provider integrations.