OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Flash 0423 vs grok-4-1-fast-reasoning

DeepSeek V4 Flash 0423 vs grok-4-1-fast-reasoning: 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 0423 has the lower cheapest prompt+completion route on TrustedRouter. DeepSeek: DeepSeek V4 Flash 0423 has more provider fallback routes, while DeepSeek: DeepSeek V4 Flash 0423 has the larger context window. Current TrustedRouter probes show DeepSeek: DeepSeek V4 Flash 0423 with the lower p50 TTFT.

$0.24898/1MDeepSeek: DeepSeek V4 Flash 0423 cheapest route

$0.7385/1Mgrok-4-1-fast-reasoning cheapest route

1498 msDeepSeek: DeepSeek V4 Flash 0423 fastest measured p50 TTFT via tinfoil

3037 msgrok-4-1-fast-reasoning fastest measured p50 TTFT via azure

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 0423grok-4-1-fast-reasoning

Model iddeepseek/deepseek-v4-flashx-ai/grok-4.1-fast-reasoning

Publisher DeepSeek xAI Grok

AI IQ IQ 113#42 —

Context1,048,576 tokens0 tokens

Provider routes291

Cheapest route$0.24898/1M$0.7385/1M

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT1498 ms via tinfoil3037 ms via azure

Highest measured throughputnot enough datanot enough data

Recent route uptime range83.33% to 100.00%100.00%

Modes chat chat

DeepSeek: DeepSeek V4 Flash 0423 routes

Overview29 endpoints
PricingPrompt and completion rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

grok-4-1-fast-reasoning routes

Overview1 endpoints

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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",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4 Flash 0423 or grok-4-1-fast-reasoning?

Is DeepSeek: DeepSeek V4 Flash 0423 or grok-4-1-fast-reasoning cheaper?

The current cheapest TrustedRouter route is $0.24898/1M for DeepSeek: DeepSeek V4 Flash 0423 and $0.7385/1M for grok-4-1-fast-reasoning. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Flash 0423 or grok-4-1-fast-reasoning faster?

Current measured p50 time to first token is 1498 ms for DeepSeek: DeepSeek V4 Flash 0423 and 3037 ms for grok-4-1-fast-reasoning. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek: DeepSeek V4 Flash 0423 and grok-4-1-fast-reasoning 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 and x-ai/grok-4.1-fast-reasoning. This makes side-by-side evals possible without maintaining two provider integrations.