OpenAI compatible API · Attested · Public status

DeepSeek: DeepSeek V4 Flash Vision Exp vs Qwen: Qwen3.5-9B

DeepSeek V4 Flash Vision Exp 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. DeepSeek: DeepSeek V4 Flash Vision Exp has more provider fallback routes, while DeepSeek: DeepSeek V4 Flash Vision Exp has the larger context window. Probe-backed speed data is shown when enough recent samples exist.

$0.43255/1MDeepSeek: DeepSeek V4 Flash Vision Exp cheapest route

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

1268 msDeepSeek: DeepSeek V4 Flash Vision Exp fastest measured p50 TTFT via deepseek

not enough dataQwen: Qwen3.5-9B fastest measured p50 TTFT

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 Vision ExpQwen: Qwen3.5-9B

Model iddeepseek/deepseek-v4-flash-vision-expqwen/qwen3.5-9b

Publisher DeepSeek DeepInfra

AI IQ IQ 113#47 IQ 93#109

Context1,048,576 tokens262,144 tokens

Credits provider routes64

Cheapest route$0.43255/1M$0.26375/1M

Cached input$0.01/1M to $0.1477/1MNot published

Privacy postureprovider posture varieshas ZDR route

Fastest measured p50 TTFT1268 ms via deepseeknot enough data

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%100.00%

Modes chat chat

DeepSeek: DeepSeek V4 Flash Vision Exp routes

Overview6 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Qwen: Qwen3.5-9B routes

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

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DeepSeek: DeepSeek V4 Flash Vision Exp vs Z.ai: GLM 5.3 Flash26 combined provider routes

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-vision-exp",
    messages=messages,
)

Questions

Which should I use, DeepSeek: DeepSeek V4 Flash Vision Exp or Qwen: Qwen3.5-9B?

Is DeepSeek: DeepSeek V4 Flash Vision Exp or Qwen: Qwen3.5-9B cheaper?

The current cheapest TrustedRouter route is $0.43255/1M for DeepSeek: DeepSeek V4 Flash Vision Exp and $0.26375/1M for Qwen: Qwen3.5-9B. The comparison uses current catalog prices and updates as provider pricing changes.

Is DeepSeek: DeepSeek V4 Flash Vision Exp or Qwen: Qwen3.5-9B faster?

Current measured p50 time to first token is 1268 ms for DeepSeek: DeepSeek V4 Flash Vision Exp and not enough data for Qwen: Qwen3.5-9B. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test DeepSeek: DeepSeek V4 Flash Vision Exp 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-flash-vision-exp and qwen/qwen3.5-9b. This makes side-by-side evals possible without maintaining two provider integrations.