OpenAI compatible API · Attested · Public status

MoonshotAI: Kimi K3 vs Qwen3-4B-Instruct-2507

MoonshotAI: Kimi K3 vs Qwen3-4B-Instruct-2507: 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

Qwen3-4B-Instruct-2507 has the lower cheapest prompt+completion route on TrustedRouter. MoonshotAI: Kimi K3 has more provider fallback routes, while MoonshotAI: Kimi K3 has the larger context window. Current TrustedRouter probes show MoonshotAI: Kimi K3 with the lower p50 TTFT.

$12.3435/1MMoonshotAI: Kimi K3 cheapest route

$0.0422/1MQwen3-4B-Instruct-2507 cheapest route

1186 msMoonshotAI: Kimi K3 fastest measured p50 TTFT via sail-research

1641 msQwen3-4B-Instruct-2507 fastest measured p50 TTFT via nscale

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.

MoonshotAI: Kimi K3Qwen3-4B-Instruct-2507

Model idmoonshotai/kimi-k3qwen/qwen3-4b-instruct-2507

Publisher Kimi Nscale

AI IQ IQ 121#27 —

Context1,048,576 tokens262,144 tokens

Credits provider routes241

Cheapest route$12.3435/1M$0.0422/1M

Cached input$0.205725/1M to $1.608679/1MNot published

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT1186 ms via sail-research1641 ms via nscale

Highest measured throughput107 tok/s via relacenot enough data

Recent route uptime range0.00% to 100.00%100.00%

Modes chat chat

MoonshotAI: Kimi K3 routes

Overview24 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

Qwen3-4B-Instruct-2507 routes

Overview1 Credits routes

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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="moonshotai/kimi-k3",
    messages=messages,
)

Questions

Which should I use, MoonshotAI: Kimi K3 or Qwen3-4B-Instruct-2507?

Is MoonshotAI: Kimi K3 or Qwen3-4B-Instruct-2507 cheaper?

The current cheapest TrustedRouter route is $12.3435/1M for MoonshotAI: Kimi K3 and $0.0422/1M for Qwen3-4B-Instruct-2507. The comparison uses current catalog prices and updates as provider pricing changes.

Is MoonshotAI: Kimi K3 or Qwen3-4B-Instruct-2507 faster?

Current measured p50 time to first token is 1186 ms for MoonshotAI: Kimi K3 and 1641 ms for Qwen3-4B-Instruct-2507. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test MoonshotAI: Kimi K3 and Qwen3-4B-Instruct-2507 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between moonshotai/kimi-k3 and qwen/qwen3-4b-instruct-2507. This makes side-by-side evals possible without maintaining two provider integrations.