OpenAI compatible API · Attested · Public status

Claude Opus 5 vs MoonshotAI: Kimi K3

Claude Opus 5 vs MoonshotAI: Kimi K3: 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 MoonshotAI: Kimi K3 with the lower p50 TTFT.

$31.5/1MClaude Opus 5 cheapest route

$8.4/1MMoonshotAI: Kimi K3 cheapest route

4155 msClaude Opus 5 fastest measured p50 TTFT via anthropic

1491 msMoonshotAI: Kimi K3 fastest measured p50 TTFT via baseten

Claude Opus 5MoonshotAI: Kimi K3

Model idanthropic/claude-opus-5moonshotai/kimi-k3

Publisher Anthropic Kimi

AI IQ IQ 134#3 IQ 123#14

Context1,000,000 tokens1,048,576 tokens

Provider routes530

Cheapest route$31.5/1M$8.4/1M

Privacy postureprovider posture varieshas provider E2EE route

Fastest measured p50 TTFT4155 ms via anthropic1491 ms via baseten

Highest measured throughput65 tok/s via anthropicnot enough data

Recent route uptime range100.00%0.00% to 100.00%

Modes chat messages chat

Claude Opus 5 routes

Overview5 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

MoonshotAI: Kimi K3 routes

Overview30 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="anthropic/claude-opus-5",
    messages=messages,
)

Questions

Which should I use, Claude Opus 5 or MoonshotAI: Kimi K3?

Is Claude Opus 5 or MoonshotAI: Kimi K3 cheaper?

The current cheapest TrustedRouter route is $31.5/1M for Claude Opus 5 and $8.4/1M for MoonshotAI: Kimi K3. The comparison uses current catalog prices and updates as provider pricing changes.

Is Claude Opus 5 or MoonshotAI: Kimi K3 faster?

Current measured p50 time to first token is 4155 ms for Claude Opus 5 and 1491 ms for MoonshotAI: Kimi K3. These are routed probe measurements, not vendor-advertised speeds, and update as new samples arrive.

Can I test Claude Opus 5 and MoonshotAI: Kimi K3 with the same API?

Yes. Use the same OpenAI-compatible TrustedRouter base URL and API key, then change only the model id between anthropic/claude-opus-5 and moonshotai/kimi-k3. This makes side-by-side evals possible without maintaining two provider integrations.