OpenAI compatible API · Attested · Public status
nvidia/NVIDIA-Nemotron-3-Ultra-550B vs OpenAI: GPT-4 Turbo
Compare nvidia/NVIDIA-Nemotron-3-Ultra-550B and OpenAI: GPT-4 Turbo by providers, context, price, and TrustedRouter route support.
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/NVIDIA-Nemotron-3-Ultra-550B has the lower cheapest prompt+completion route on TrustedRouter. nvidia/NVIDIA-Nemotron-3-Ultra-550B has more provider fallback routes, while nvidia/NVIDIA-Nemotron-3-Ultra-550B has the larger context window. Current TrustedRouter probes show OpenAI: GPT-4 Turbo with the lower p50 TTFT.
$2.73/1Mnvidia/NVIDIA-Nemotron-3-Ultra-550B cheapest route
$42/1MOpenAI: GPT-4 Turbo cheapest route
9108 msnvidia/NVIDIA-Nemotron-3-Ultra-550B measured p50 TTFT
7106 msOpenAI: GPT-4 Turbo measured p50 TTFT
nvidia/NVIDIA-Nemotron-3-Ultra-550BOpenAI: GPT-4 Turbo
Model id
nvidia/nemotron-3-ultra-550bopenai/gpt-4-turbo
PublisherCrusoeOpenAI
Context262,144 tokens128,000 tokens
Provider routes44
Cheapest route$2.73/1M$42/1M
Privacy postureprovider posture variesprovider posture varies
Modes
chat
chat
nvidia/NVIDIA-Nemotron-3-Ultra-550B routes
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="nvidia/nemotron-3-ultra-550b",
messages=messages,
)