OpenAI compatible API · Attested · Public status

MoonshotAI: Kimi K3 vs OpenAI: gpt-oss-120b

MoonshotAI: Kimi K3 vs gpt-oss-120b: 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

OpenAI: gpt-oss-120b 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 OpenAI: gpt-oss-120b with the lower p50 TTFT.

$16.1415/1MMoonshotAI: Kimi K3 cheapest route

$0.218385/1MOpenAI: gpt-oss-120b cheapest route

1836 msMoonshotAI: Kimi K3 fastest measured p50 TTFT via nebius

827 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via fireworks

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 K3OpenAI: gpt-oss-120b

Model idmoonshotai/kimi-k3openai/gpt-oss-120b

Publisher Kimi OpenAI

AI IQ IQ 123#16 IQ 105#61

Context1,048,576 tokens131,072 tokens

Provider routes3326

Cheapest route$16.1415/1M$0.218385/1M

Privacy posturehas provider E2EE routehas provider E2EE route

Fastest measured p50 TTFT1836 ms via nebius827 ms via fireworks

Highest measured throughput66 tok/s via basetennot enough data

Recent route uptime range41.67% to 100.00%100.00%

Modes chat chat

MoonshotAI: Kimi K3 routes

Overview33 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

OpenAI: gpt-oss-120b routes

Overview26 endpoints
PricingPrompt and completion 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="moonshotai/kimi-k3",
    messages=messages,
)

Questions

Which should I use, MoonshotAI: Kimi K3 or OpenAI: gpt-oss-120b?

Is MoonshotAI: Kimi K3 or OpenAI: gpt-oss-120b cheaper?

The current cheapest TrustedRouter route is $16.1415/1M for MoonshotAI: Kimi K3 and $0.218385/1M for OpenAI: gpt-oss-120b. The comparison uses current catalog prices and updates as provider pricing changes.

Is MoonshotAI: Kimi K3 or OpenAI: gpt-oss-120b faster?

Current measured p50 time to first token is 1836 ms for MoonshotAI: Kimi K3 and 827 ms for OpenAI: gpt-oss-120b. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test MoonshotAI: Kimi K3 and OpenAI: gpt-oss-120b 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 openai/gpt-oss-120b. This makes side-by-side evals possible without maintaining two provider integrations.