OpenAI compatible API · Attested · Public status

MoonshotAI: Kimi K3 vs OpenAI: GPT-4.1

MoonshotAI: Kimi K3 vs GPT-4.1: 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

MoonshotAI: Kimi K3 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-4.1 with the lower p50 TTFT.

$8.4/1MMoonshotAI: Kimi K3 cheapest route

$10.5/1MOpenAI: GPT-4.1 cheapest route

1491 msMoonshotAI: Kimi K3 fastest measured p50 TTFT via baseten

1254 msOpenAI: GPT-4.1 fastest measured p50 TTFT via openai

MoonshotAI: Kimi K3OpenAI: GPT-4.1

Model idmoonshotai/kimi-k3openai/gpt-4.1

Publisher Kimi OpenAI

AI IQ IQ 123#14 —

Context1,048,576 tokens1,047,576 tokens

Provider routes304

Cheapest route$8.4/1M$10.5/1M

Privacy posturehas provider E2EE routehas ZDR route

Fastest measured p50 TTFT1491 ms via baseten1254 ms via openai

Highest measured throughputnot enough datanot enough data

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

Modes chat chat

MoonshotAI: Kimi K3 routes

Overview30 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

OpenAI: GPT-4.1 routes

Overview4 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-4.1?

Is MoonshotAI: Kimi K3 or OpenAI: GPT-4.1 cheaper?

The current cheapest TrustedRouter route is $8.4/1M for MoonshotAI: Kimi K3 and $10.5/1M for OpenAI: GPT-4.1. The comparison uses current catalog prices and updates as provider pricing changes.

Is MoonshotAI: Kimi K3 or OpenAI: GPT-4.1 faster?

Current measured p50 time to first token is 1491 ms for MoonshotAI: Kimi K3 and 1254 ms for OpenAI: GPT-4.1. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test MoonshotAI: Kimi K3 and OpenAI: GPT-4.1 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-4.1. This makes side-by-side evals possible without maintaining two provider integrations.