OpenAI compatible API · Attested · Public status
NVIDIA: Nemotron 3 Ultra vs DeepSeek: DeepSeek V3.1 Terminus
Compare NVIDIA: Nemotron 3 Ultra and DeepSeek: DeepSeek V3.1 Terminus 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
DeepSeek: DeepSeek V3.1 Terminus has the lower cheapest prompt+completion route on TrustedRouter. NVIDIA: Nemotron 3 Ultra has more provider fallback routes, while NVIDIA: Nemotron 3 Ultra has the larger context window. Current TrustedRouter probes show NVIDIA: Nemotron 3 Ultra with the lower p50 TTFT.
$3.15/1MNVIDIA: Nemotron 3 Ultra cheapest route
$1.281/1MDeepSeek: DeepSeek V3.1 Terminus cheapest route
2713 msNVIDIA: Nemotron 3 Ultra measured p50 TTFT
3278 msDeepSeek: DeepSeek V3.1 Terminus measured p50 TTFT
NVIDIA: Nemotron 3 UltraDeepSeek: DeepSeek V3.1 Terminus
Model id
nvidia/nemotron-3-ultra-550b-a55bdeepseek/deepseek-v3.1-terminus
PublisherTogetherDeepSeek
AI IQ
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Context512,288 tokens163,840 tokens
Provider routes77
Cheapest route$3.15/1M$1.281/1M
Privacy posturehas ZDR routeprovider posture varies
Modes
chat
chat
NVIDIA: Nemotron 3 Ultra 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-a55b",
messages=messages,
)