OpenAI compatible API · Attested · Public status

MoonshotAI: Kimi K3 vs NVIDIA: Nemotron 3 Ultra

Compare MoonshotAI: Kimi K3 and NVIDIA: Nemotron 3 Ultra by providers, context, price, and TrustedRouter route support.

Verify gateway

Onebase URL to migrate

100sof models and routes

Noneprompt logs by default

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

NVIDIA: Nemotron 3 Ultra 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 NVIDIA: Nemotron 3 Ultra with the lower p50 TTFT.

$18.9/1MMoonshotAI: Kimi K3 cheapest route

$3.15/1MNVIDIA: Nemotron 3 Ultra cheapest route

7073 msMoonshotAI: Kimi K3 measured p50 TTFT

2713 msNVIDIA: Nemotron 3 Ultra measured p50 TTFT

MoonshotAI: Kimi K3NVIDIA: Nemotron 3 Ultra

Model idmoonshotai/kimi-k3nvidia/nemotron-3-ultra-550b-a55b

PublisherKimiTogether

AI IQ IQ 121#15 —

Context1,048,576 tokens512,288 tokens

Provider routes87

Cheapest route$18.9/1M$3.15/1M

Privacy postureprovider posture varieshas ZDR route

Modes chat chat

MoonshotAI: Kimi K3 routes

Overview8 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

NVIDIA: Nemotron 3 Ultra routes

Overview7 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

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,
)