OpenAI compatible API · Attested · Public status
Qwen: Qwen3.5 397B A17B vs NVIDIA: Nemotron 3 Ultra
Compare Qwen: Qwen3.5 397B A17B and NVIDIA: Nemotron 3 Ultra 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
Qwen: Qwen3.5 397B A17B has the lower cheapest prompt+completion route on TrustedRouter. Qwen: Qwen3.5 397B A17B 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.
$2.97675/1MQwen: Qwen3.5 397B A17B cheapest route
$3.15/1MNVIDIA: Nemotron 3 Ultra cheapest route
3375 msQwen: Qwen3.5 397B A17B measured p50 TTFT
2713 msNVIDIA: Nemotron 3 Ultra measured p50 TTFT
Qwen: Qwen3.5 397B A17BNVIDIA: Nemotron 3 Ultra
Model id
qwen/qwen3.5-397b-a17bnvidia/nemotron-3-ultra-550b-a55b
PublisherDeepInfraTogether
AI IQ
—
—
Context262,144 tokens512,288 tokens
Provider routes157
Cheapest route$2.97675/1M$3.15/1M
Privacy posturehas provider E2EE routehas ZDR route
Modes
chat
chat
Qwen: Qwen3.5 397B A17B 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="qwen/qwen3.5-397b-a17b",
messages=messages,
)