OpenAI compatible API · Attested · Public status

DeepSeek V4 Pro 0423 vs Qwen: Qwen3.5-9B

DeepSeek V4 Pro 0423 vs Qwen: Qwen3.5-9B: 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

Qwen: Qwen3.5-9B has the lower cheapest prompt+completion route on TrustedRouter. Qwen: Qwen3.5-9B has more provider fallback routes, while DeepSeek V4 Pro 0423 has the larger context window. Current TrustedRouter probes show DeepSeek V4 Pro 0423 with the lower p50 TTFT.

$4.1145/1MDeepSeek V4 Pro 0423 cheapest route

$0.26375/1MQwen: Qwen3.5-9B cheapest route

1344 msDeepSeek V4 Pro 0423 fastest measured p50 TTFT via parasail

2798 msQwen: Qwen3.5-9B fastest measured p50 TTFT via regolo

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 V4 Pro 0423Qwen: Qwen3.5-9B

Model iddeepseek/deepseek-v4-pro-0423qwen/qwen3.5-9b

Publisher DeepSeek DeepInfra

AI IQ — IQ 95#108

Context1,048,576 tokens262,144 tokens

Credits provider routes45

Cheapest route$4.1145/1M$0.26375/1M

Cached input$0.1055/1M to $0.34815/1MNot published

Privacy posturehas ZDR routehas ZDR route

Fastest measured p50 TTFT1344 ms via parasail2798 ms via regolo

Highest measured throughput58 tok/s via parasailnot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

DeepSeek V4 Pro 0423 routes

Overview4 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Qwen: Qwen3.5-9B routes

Overview5 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-pro-0423",
    messages=messages,
)

Questions

Which should I use, DeepSeek V4 Pro 0423 or Qwen: Qwen3.5-9B?

Is DeepSeek V4 Pro 0423 or Qwen: Qwen3.5-9B cheaper?

The current cheapest TrustedRouter route is $4.1145/1M for DeepSeek V4 Pro 0423 and $0.26375/1M for Qwen: Qwen3.5-9B. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek V4 Pro 0423 or Qwen: Qwen3.5-9B faster?

Current measured p50 time to first token is 1344 ms for DeepSeek V4 Pro 0423 and 2798 ms for Qwen: Qwen3.5-9B. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek V4 Pro 0423 and Qwen: Qwen3.5-9B 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-0423 and qwen/qwen3.5-9b. This makes side-by-side evals possible without maintaining two provider integrations.