OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Pro vs Mistral: Mistral Medium 3.5

DeepSeek V4 Pro vs Mistral Medium 3.5: 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

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

$1.37025/1MDeepSeek: DeepSeek V4 Pro cheapest route

$9.45/1MMistral: Mistral Medium 3.5 cheapest route

1272 msDeepSeek: DeepSeek V4 Pro fastest measured p50 TTFT via pearl

1417 msMistral: Mistral Medium 3.5 fastest measured p50 TTFT via mistral

DeepSeek: DeepSeek V4 ProMistral: Mistral Medium 3.5

Model iddeepseek/deepseek-v4-promistralai/mistral-medium-3-5

Publisher DeepSeek Mistral

AI IQ IQ 117#25 —

Context1,048,576 tokens262,144 tokens

Provider routes272

Cheapest route$1.37025/1M$9.45/1M

Privacy posturehas ZDR routeprovider posture varies

Fastest measured p50 TTFT1272 ms via pearl1417 ms via mistral

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

DeepSeek: DeepSeek V4 Pro routes

Overview27 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

Mistral: Mistral Medium 3.5 routes

Overview2 endpoints
PricingPrompt and completion 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-pro",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4 Pro or Mistral: Mistral Medium 3.5?

Is DeepSeek: DeepSeek V4 Pro or Mistral: Mistral Medium 3.5 cheaper?

The current cheapest TrustedRouter route is $1.37025/1M for DeepSeek: DeepSeek V4 Pro and $9.45/1M for Mistral: Mistral Medium 3.5. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Pro or Mistral: Mistral Medium 3.5 faster?

Current measured p50 time to first token is 1272 ms for DeepSeek: DeepSeek V4 Pro and 1417 ms for Mistral: Mistral Medium 3.5. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek: DeepSeek V4 Pro and Mistral: Mistral Medium 3.5 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-pro and mistralai/mistral-medium-3-5. This makes side-by-side evals possible without maintaining two provider integrations.