OpenAI compatible API · Attested · Public status

MoonshotAI: Kimi K2.6 vs System1 s1-fast (EU)

MoonshotAI: Kimi K2.6 vs System1 s1-fast (EU): 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

MoonshotAI: Kimi K2.6 has more Credits provider routes. System1 s1-fast (EU) has the lower published input-plus-output rate. There is not enough recent probe data to compare speed.

$3.085875/1MMoonshotAI: Kimi K2.6 cheapest route

$0.03587/1MSystem1 s1-fast (EU) cheapest route

954 msMoonshotAI: Kimi K2.6 fastest measured p50 TTFT via digitalocean

not enough dataSystem1 s1-fast (EU) fastest measured p50 TTFT

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.

MoonshotAI: Kimi K2.6System1 s1-fast (EU)

Model idmoonshotai/kimi-k2.6system1models-eu/s1-fast

Publisher Kimi system1models-eu

AI IQ IQ 115#53 —

Context262,144 tokens0 tokens

Credits provider routes161

Cheapest route$3.085875/1M$0.03587/1M

Cached input$0.05275/1M to $0.437667/1MNot published

Privacy posturehas Confidential route (E2EE + ZDR)provider posture varies

Fastest measured p50 TTFT954 ms via digitaloceannot enough data

Highest measured throughputnot enough datanot enough data

Recent route uptime range100.00%not enough data

Modes chat decide

MoonshotAI: Kimi K2.6 routes

Overview16 Credits routes
PricingInput, cached input, and output rates
BenchmarksTrustedRouter and external sources
ProvidersAll serving providers

System1 s1-fast (EU) 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-k2.6",
    messages=messages,
)

Questions

Which should I use, MoonshotAI: Kimi K2.6 or System1 s1-fast (EU)?

MoonshotAI: Kimi K2.6 has more Credits provider routes. System1 s1-fast (EU) has the lower published input-plus-output rate. There is not enough recent probe data to compare speed.

Is MoonshotAI: Kimi K2.6 or System1 s1-fast (EU) cheaper?

The current cheapest TrustedRouter route is $3.085875/1M for MoonshotAI: Kimi K2.6 and $0.03587/1M for System1 s1-fast (EU). The comparison uses current catalog prices and updates as provider pricing changes.

Is MoonshotAI: Kimi K2.6 or System1 s1-fast (EU) faster?

Current measured p50 time to first token is 954 ms for MoonshotAI: Kimi K2.6 and not enough data for System1 s1-fast (EU). These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test MoonshotAI: Kimi K2.6 and System1 s1-fast (EU) with the same API?

Yes. Both take the same request on POST /api/alpha/decide, with the same TrustedRouter base URL and API key, so a side-by-side eval changes only the model id between moonshotai/kimi-k2.6 and system1models-eu/s1-fast. System1 s1-fast (EU) does not take chat requests.