OpenAI compatible API · Attested · Public status

MoonshotAI: Kimi K3 vs GPT 5.4 mini

MoonshotAI: Kimi K3 vs GPT 5.4 mini: 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

GPT 5.4 mini 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. Probe-backed speed data is shown when enough recent samples exist.

$16.065/1MMoonshotAI: Kimi K3 cheapest route

$5.5125/1MGPT 5.4 mini cheapest route

1399 msMoonshotAI: Kimi K3 fastest measured p50 TTFT via together

not enough dataGPT 5.4 mini fastest measured p50 TTFT

MoonshotAI: Kimi K3GPT 5.4 mini

Model idmoonshotai/kimi-k3openai/gpt-5.4-mini-2026-03-17

Publisher Kimi OpenAI

AI IQ IQ 123#14 —

Context1,048,576 tokens400,000 tokens

Provider routes332

Cheapest route$16.065/1M$5.5125/1M

Privacy posturehas provider E2EE routeprovider posture varies

Fastest measured p50 TTFT1399 ms via togethernot enough data

Highest measured throughput57 tok/s via basetennot enough data

Recent route uptime range0.00% to 100.00%not enough data

Modes chat chat

MoonshotAI: Kimi K3 routes

Overview33 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

GPT 5.4 mini routes

Overview2 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 GPT 5.4 mini?

Is MoonshotAI: Kimi K3 or GPT 5.4 mini cheaper?

The current cheapest TrustedRouter route is $16.065/1M for MoonshotAI: Kimi K3 and $5.5125/1M for GPT 5.4 mini. The comparison uses current catalog prices and updates as provider pricing changes.

Is MoonshotAI: Kimi K3 or GPT 5.4 mini faster?

Current measured p50 time to first token is 1399 ms for MoonshotAI: Kimi K3 and not enough data for GPT 5.4 mini. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test MoonshotAI: Kimi K3 and GPT 5.4 mini 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-5.4-mini-2026-03-17. This makes side-by-side evals possible without maintaining two provider integrations.