OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Flash 0731 vs Google: Gemini 3.8 Flash

DeepSeek V4 Flash 0731 vs Google: Gemini 3.8 Flash: 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

$4.7475/1MGoogle: Gemini 3.8 Flash cheapest route

1191 msDeepSeek: DeepSeek V4 Flash 0731 fastest measured p50 TTFT via engy

2092 msGoogle: Gemini 3.8 Flash fastest measured p50 TTFT via google-ai-studio

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 3.8 Flash

Model iddeepseek/deepseek-v4-flash-0731google/gemini-3.8-flash

Publisher DeepSeek Google AI Studio

AI IQ — IQ 124#16

Context1,048,576 tokens1,048,576 tokens

Credits provider routes242

Cheapest route$0.142425/1M$4.7475/1M

Cached input$0.01/1M to $0.101559/1M$0.079125/1M

Privacy posturehas confidential-compute routehas ZDR route

Fastest measured p50 TTFT1191 ms via engy2092 ms via google-ai-studio

Highest measured throughput214 tok/s via fireworksnot enough data

Recent route uptime range0.00% to 100.00%100.00%

Modes chat chat

DeepSeek: DeepSeek V4 Flash 0731 routes

Overview24 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Google: Gemini 3.8 Flash routes

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

Related comparisons

Browse every comparison

DeepSeek: DeepSeek V4 Flash 0731 vs Z.ai: GLM 5.252 combined provider routes
DeepSeek: DeepSeek V4 Flash 0731 vs Z.ai: GLM 5.350 combined provider routes
DeepSeek: DeepSeek V4 Flash 0731 vs Z.ai: GLM 5.3 Flash49 combined provider routes
DeepSeek: DeepSeek V4 Flash 0731 vs MoonshotAI: Kimi K348 combined provider routes
DeepSeek: DeepSeek V4 Flash 0731 vs OpenAI: gpt-oss-120b46 combined provider routes
DeepSeek: DeepSeek V4 Flash 0731 vs MoonshotAI: Kimi K2.643 combined provider routes
DeepSeek: DeepSeek V4 Flash 0731 vs DeepSeek: DeepSeek V4 Pro 042341 combined provider routes
DeepSeek: DeepSeek V4 Flash 0423 vs DeepSeek: DeepSeek V4 Flash 073140 combined provider 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="deepseek/deepseek-v4-flash-0731",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.8 Flash?

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 3.8 Flash cheaper?

The current cheapest TrustedRouter route is $0.142425/1M for DeepSeek: DeepSeek V4 Flash 0731 and $4.7475/1M for Google: Gemini 3.8 Flash. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Flash 0731 or Google: Gemini 3.8 Flash faster?

Current measured p50 time to first token is 1191 ms for DeepSeek: DeepSeek V4 Flash 0731 and 2092 ms for Google: Gemini 3.8 Flash. 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 3.8 Flash 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-3.8-flash. This makes side-by-side evals possible without maintaining two provider integrations.