OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Flash 0731 vs DeepSeek V4 Pro 0813

DeepSeek V4 Flash 0731 vs DeepSeek V4 Pro 0813: 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: DeepSeek V4 Flash 0731 has the lower cheapest prompt+completion route on TrustedRouter. DeepSeek: DeepSeek V4 Flash 0731 has more provider fallback routes, while DeepSeek: DeepSeek V4 Flash 0731 has the larger context window. Current TrustedRouter probes show DeepSeek V4 Pro 0813 with the lower p50 TTFT.

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

$5.5704/1MDeepSeek V4 Pro 0813 cheapest route

1302 msDeepSeek: DeepSeek V4 Flash 0731 fastest measured p50 TTFT via pearl

1168 msDeepSeek V4 Pro 0813 fastest measured p50 TTFT via fireworks

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 0731DeepSeek V4 Pro 0813

Model iddeepseek/deepseek-v4-flash-0731deepseek/deepseek-v4-pro-0813

Publisher DeepSeek DeepSeek

AI IQ — —

Context1,048,576 tokens1,048,576 tokens

Credits provider routes212

Cheapest route$0.142425/1M$5.5704/1M

Cached input$0.01/1M to $0.146561/1M$0.04642/1M to $0.13926/1M

Privacy posturehas confidential-compute routehas ZDR route

Fastest measured p50 TTFT1302 ms via pearl1168 ms via fireworks

Highest measured throughput234 tok/s via telnyxnot enough data

Recent route uptime range0.00% to 100.00%90.00% to 100.00%

Modes chat chat

DeepSeek: DeepSeek V4 Flash 0731 routes

Overview21 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

DeepSeek V4 Pro 0813 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="deepseek/deepseek-v4-flash-0731",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4 Flash 0731 or DeepSeek V4 Pro 0813?

Is DeepSeek: DeepSeek V4 Flash 0731 or DeepSeek V4 Pro 0813 cheaper?

The current cheapest TrustedRouter route is $0.142425/1M for DeepSeek: DeepSeek V4 Flash 0731 and $5.5704/1M for DeepSeek V4 Pro 0813. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Flash 0731 or DeepSeek V4 Pro 0813 faster?

Current measured p50 time to first token is 1302 ms for DeepSeek: DeepSeek V4 Flash 0731 and 1168 ms for DeepSeek V4 Pro 0813. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek: DeepSeek V4 Flash 0731 and DeepSeek V4 Pro 0813 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 deepseek/deepseek-v4-pro-0813. This makes side-by-side evals possible without maintaining two provider integrations.