OpenAI compatible API · Attested · Public status

MoonshotAI: Kimi K2.5 vs OpenAI: gpt-oss-120b

MoonshotAI: Kimi K2.5 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. OpenAI: gpt-oss-120b has more provider fallback routes, while MoonshotAI: Kimi K2.5 has the larger context window. Current TrustedRouter probes show OpenAI: gpt-oss-120b with the lower p50 TTFT.

$2.79575/1MMoonshotAI: Kimi K2.5 cheapest route

$0.211/1MOpenAI: gpt-oss-120b cheapest route

2020 msMoonshotAI: Kimi K2.5 fastest measured p50 TTFT via telnyx

1122 msOpenAI: gpt-oss-120b fastest measured p50 TTFT via sail-research

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 K2.5OpenAI: gpt-oss-120b

Model idmoonshotai/kimi-k2.5openai/gpt-oss-120b

Publisher Kimi OpenAI

AI IQ IQ 111#57 IQ 98#99

Context262,144 tokens131,072 tokens

Credits provider routes822

Cheapest route$2.79575/1M$0.211/1M

Cached input$0.07385/1M to $0.422/1M$0.015825/1M to $0.1055/1M

Privacy postureprovider posture varieshas provider E2EE route

Fastest measured p50 TTFT2020 ms via telnyx1122 ms via sail-research

Highest measured throughputnot enough data140 tok/s via io-net

Recent route uptime range100.00%100.00%

Modes chat chat

MoonshotAI: Kimi K2.5 routes

Overview8 Credits routes
PricingInput, cached input, and output rates
ProvidersAll serving providers

OpenAI: gpt-oss-120b routes

Overview22 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="moonshotai/kimi-k2.5",
    messages=messages,
)

Questions

Which should I use, MoonshotAI: Kimi K2.5 or OpenAI: gpt-oss-120b?

Is MoonshotAI: Kimi K2.5 or OpenAI: gpt-oss-120b cheaper?

The current cheapest TrustedRouter route is $2.79575/1M for MoonshotAI: Kimi K2.5 and $0.211/1M for OpenAI: gpt-oss-120b. The comparison uses current catalog prices and updates as provider pricing changes.

Is MoonshotAI: Kimi K2.5 or OpenAI: gpt-oss-120b faster?

Current measured p50 time to first token is 2020 ms for MoonshotAI: Kimi K2.5 and 1122 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 K2.5 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-k2.5 and openai/gpt-oss-120b. This makes side-by-side evals possible without maintaining two provider integrations.