OpenAI compatible API · Attested · Public status

Z.ai: GLM 4.6 vs nvidia/NVIDIA-Nemotron-3-Ultra-550B

Compare Z.ai: GLM 4.6 and nvidia/NVIDIA-Nemotron-3-Ultra-550B 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

Z.ai: GLM 4.6 has the lower cheapest prompt+completion route on TrustedRouter. Z.ai: GLM 4.6 has more provider fallback routes, while nvidia/NVIDIA-Nemotron-3-Ultra-550B has the larger context window. Current TrustedRouter probes show Z.ai: GLM 4.6 with the lower p50 TTFT.

$2.289/1MZ.ai: GLM 4.6 cheapest route

$2.73/1Mnvidia/NVIDIA-Nemotron-3-Ultra-550B cheapest route

1177 msZ.ai: GLM 4.6 measured p50 TTFT

9108 msnvidia/NVIDIA-Nemotron-3-Ultra-550B measured p50 TTFT

Z.ai: GLM 4.6nvidia/NVIDIA-Nemotron-3-Ultra-550B

Model idz-ai/glm-4.6nvidia/nemotron-3-ultra-550b

PublisherZ.AICrusoe

AI IQ — —

Context204,800 tokens262,144 tokens

Provider routes74

Cheapest route$2.289/1M$2.73/1M

Privacy posturehas provider E2EE routeprovider posture varies

Modes chat chat

Z.ai: GLM 4.6 routes

Overview7 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

nvidia/NVIDIA-Nemotron-3-Ultra-550B routes

Overview4 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="z-ai/glm-4.6",
    messages=messages,
)