OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Pro vs OpenAI: GPT-5 Nano

DeepSeek V4 Pro vs GPT-5 Nano: 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

OpenAI: GPT-5 Nano 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 OpenAI: GPT-5 Nano with the lower p50 TTFT.

$1.37025/1MDeepSeek: DeepSeek V4 Pro cheapest route

$0.4725/1MOpenAI: GPT-5 Nano cheapest route

2342 msDeepSeek: DeepSeek V4 Pro fastest measured p50 TTFT via atlas-cloud

956 msOpenAI: GPT-5 Nano fastest measured p50 TTFT via openai

DeepSeek: DeepSeek V4 ProOpenAI: GPT-5 Nano

Model iddeepseek/deepseek-v4-proopenai/gpt-5-nano

Publisher DeepSeek OpenAI

AI IQ IQ 117#25 IQ 96#82

Context1,048,576 tokens400,000 tokens

Provider routes244

Cheapest route$1.37025/1M$0.4725/1M

Privacy posturehas ZDR routehas ZDR route

Fastest measured p50 TTFT2342 ms via atlas-cloud956 ms via openai

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

DeepSeek: DeepSeek V4 Pro routes

Overview24 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

OpenAI: GPT-5 Nano routes

Overview4 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 OpenAI: GPT-5 Nano?

Is DeepSeek: DeepSeek V4 Pro or OpenAI: GPT-5 Nano cheaper?

The current cheapest TrustedRouter route is $1.37025/1M for DeepSeek: DeepSeek V4 Pro and $0.4725/1M for OpenAI: GPT-5 Nano. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Pro or OpenAI: GPT-5 Nano faster?

Current measured p50 time to first token is 2342 ms for DeepSeek: DeepSeek V4 Pro and 956 ms for OpenAI: GPT-5 Nano. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek: DeepSeek V4 Pro and OpenAI: GPT-5 Nano 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 openai/gpt-5-nano. This makes side-by-side evals possible without maintaining two provider integrations.