OpenAI compatible API · Attested · Public status

Claude Opus 5 vs NVIDIA: Nemotron 3 Ultra

Compare Claude Opus 5 and NVIDIA: Nemotron 3 Ultra by providers, context, price, and TrustedRouter route support.

Verify gateway

Onebase URL to migrate

100sof models and routes

0prompt or output logs. Always.

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: Nemotron 3 Ultra has the lower cheapest prompt+completion route on TrustedRouter. NVIDIA: Nemotron 3 Ultra has more provider fallback routes, while Claude Opus 5 has the larger context window. Current TrustedRouter probes show NVIDIA: Nemotron 3 Ultra with the lower p50 TTFT.

$31.5/1MClaude Opus 5 cheapest route

$3.15/1MNVIDIA: Nemotron 3 Ultra cheapest route

3238 msClaude Opus 5 measured p50 TTFT

3087 msNVIDIA: Nemotron 3 Ultra measured p50 TTFT

Claude Opus 5NVIDIA: Nemotron 3 Ultra

Model idanthropic/claude-opus-5nvidia/nemotron-3-ultra-550b-a55b

PublisherAnthropicTogether

AI IQ IQ 134#3 —

Context1,000,000 tokens512,288 tokens

Provider routes57

Cheapest route$31.5/1M$3.15/1M

Privacy postureprovider posture varieshas ZDR route

Modes chat messages chat

Claude Opus 5 routes

Overview5 endpoints
PricingPrompt and completion rates
ProvidersAll serving providers

NVIDIA: Nemotron 3 Ultra routes

Overview7 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="anthropic/claude-opus-5",
    messages=messages,
)