OpenAI compatible API · Attested · Public status
OpenAI: GPT-5.6 Terra vs nvidia/NVIDIA-Nemotron-3-Ultra-550B
Compare OpenAI: GPT-5.6 Terra and nvidia/NVIDIA-Nemotron-3-Ultra-550B 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. OpenAI: GPT-5.6 Terra has more provider fallback routes, while OpenAI: GPT-5.6 Terra has the larger context window. Current TrustedRouter probes show OpenAI: GPT-5.6 Terra with the lower p50 TTFT.
$18.375/1MOpenAI: GPT-5.6 Terra cheapest route
$2.73/1Mnvidia/NVIDIA-Nemotron-3-Ultra-550B cheapest route
1837 msOpenAI: GPT-5.6 Terra measured p50 TTFT
9108 msnvidia/NVIDIA-Nemotron-3-Ultra-550B measured p50 TTFT
OpenAI: GPT-5.6 Terranvidia/NVIDIA-Nemotron-3-Ultra-550B
Model id
openai/gpt-5.6-terranvidia/nemotron-3-ultra-550b
PublisherOpenAICrusoe
Context1,050,000 tokens262,144 tokens
Provider routes64
Cheapest route$18.375/1M$2.73/1M
Privacy postureprovider posture variesprovider posture varies
Modes
chat
chat
OpenAI: GPT-5.6 Terra 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="openai/gpt-5.6-terra",
messages=messages,
)