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Kimi K3 Uncensored vs Nemotron 3 Ultra 550B Uncensored

Prices per million tokens as of 2026-11-09. Nemotron 3 Ultra 550B Uncensored is the lower-priced build on a 2M-in, 500K-out month.

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Kimi K3 UncensoredNemotron 3 Ultra 550B Uncensored
Model idkimi-k3-uncensorednemotron-3-ultra-550b-a55b-uncensored
KindUncensoredUncensored
DeveloperMoonshot AINVIDIA
Input per M$5.745$1.125
Cached input per M$1.437$0.225
Output per M$28.68$6.60
Context window262,144 tokens262,144 tokens
Max output65,536 tokens65,536 tokens
Last hourDegradedAnswering
Daily checkSteady since Nov 3Steady since Oct 27
Worked month$25.83$5.55

The month

Input
2,000,000 tokens
Output
500,000 tokens
Nemotron 3 Ultra 550B Uncensored
$5.55
Kimi K3 Uncensored
$25.83
4.7× the other build

Same call, different id

Both answer the OpenAI wire format on one base URL and key. Nothing but the model id changes.

One request on each

curl
1curl https://api.uncensoredllm.ai/v1/chat/completions \
2 -H "Authorization: Bearer sk-ullm-live-…" \
3 -H "Content-Type: application/json" \
4 -d '{"model": "kimi-k3-uncensored", "messages": [{"role": "user", "content": "Hello"}]}'
curl
1curl https://api.uncensoredllm.ai/v1/chat/completions \
2 -H "Authorization: Bearer sk-ullm-live-…" \
3 -H "Content-Type: application/json" \
4 -d '{"model": "nemotron-3-ultra-550b-a55b-uncensored", "messages": [{"role": "user", "content": "Hello"}]}'

Questions

Nemotron 3 Ultra 550B Uncensored: $5.55 for a month of 2,000,000 input and 500,000 output tokens against $25.83 on Kimi K3 Uncensored, 4.7× the price, at the catalog rates on 2026-11-09.

An abliterated build has the refusal direction removed from the weights; an uncensored build is a fine-tune or a system-level build that answers without declining. Both answer what the stock model refuses; the model pages name each build.

Yes. Both answer the OpenAI wire format on the same base URL and key; the model id is the only field that changes.

The daily real-model check: Kimi K3 Uncensored reads "Steady since Nov 3", Nemotron 3 Ultra 550B Uncensored reads "Steady since Oct 27" at render.

Every pair is on the comparisons page; every model with all its prices is on the price index.

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