OpenAI compatible API · Attested · Public status

LongCat 2.0 vs MoonshotAI: Kimi K3

LongCat 2.0 vs MoonshotAI: Kimi K3: 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

LongCat 2.0 has the lower published input-plus-output rate and the larger context window. MoonshotAI: Kimi K3 has more Credits provider routes. There is not enough recent probe data to compare speed.

$3.95625/1MLongCat 2.0 cheapest route

$12.3435/1MMoonshotAI: Kimi K3 cheapest route

not enough dataLongCat 2.0 fastest measured p50 TTFT

1362 msMoonshotAI: Kimi K3 fastest measured p50 TTFT via wafer

The price comparison adds each route's rate for one million input tokens and one million output tokens; your cost depends on your input/output mix. 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.

LongCat 2.0MoonshotAI: Kimi K3

Model idmeituan-longcat/longcat-2.0moonshotai/kimi-k3

Publisher Atlas Cloud Kimi

AI IQ IQ 100#90 IQ 121#24

Context1,048,756 tokens1,048,576 tokens

Credits provider routes124

Cheapest route$3.95625/1M$12.3435/1M

Cached input$0.015825/1M$0.205725/1M to $1.693275/1M

Privacy postureprovider posture varieshas provider E2EE route

Fastest measured p50 TTFTnot enough data1362 ms via wafer

Highest measured throughputnot enough data85 tok/s via telnyx

Recent route uptime range100.00%0.00% to 100.00%

Modes chat chat

LongCat 2.0 routes

Overview1 Credits routes

MoonshotAI: Kimi K3 routes

Overview24 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="meituan-longcat/longcat-2.0",
    messages=messages,
)

Questions

Which should I use, LongCat 2.0 or MoonshotAI: Kimi K3?

LongCat 2.0 has the lower published input-plus-output rate and the larger context window. MoonshotAI: Kimi K3 has more Credits provider routes. There is not enough recent probe data to compare speed.

Is LongCat 2.0 or MoonshotAI: Kimi K3 cheaper?

The current cheapest TrustedRouter route is $3.95625/1M for LongCat 2.0 and $12.3435/1M for MoonshotAI: Kimi K3. The comparison uses current catalog prices and updates as provider pricing changes.

Is LongCat 2.0 or MoonshotAI: Kimi K3 faster?

Current measured p50 time to first token is not enough data for LongCat 2.0 and 1362 ms for MoonshotAI: Kimi K3. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test LongCat 2.0 and MoonshotAI: Kimi K3 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between meituan-longcat/longcat-2.0 and moonshotai/kimi-k3. This makes side-by-side evals possible without maintaining two provider integrations.