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Nemotron 3 Ultra

A 550B parameter (55B active) open reasoning model from NVIDIA, built for long-running agent workflows.

text → text · made by NVIDIA

$0.5$2.5per Mtok in / out
ElectronHub · 13 sellers

Free

Offered at no charge, which is not the same as cheap: a free lane carries a rate limit and can be withdrawn. The prices above are what you pay when it is not available to you.

Sold by 32 ways

SellerLaneRate
DigitalOcean cloudstandard$0.9per Mtok in$1.7per Mtok outmodels.dev · read 2026-09-16
Thinking Machines Lab apitraining$2.49per Mtok in$6.22per Mtok out$0.5per Mtok cachedtinker-docs.thinkingmachines.ai · read 2026-08-25
Thinking Machines Lab apitraining-256k$3.32per Mtok in$8.3per Mtok out$0.66per Mtok cachedtinker-docs.thinkingmachines.ai · read 2026-08-25
OpenRouter 5 ways$0.62per Mtok in$3.12per Mtok out$0.19per Mtok cached
OpenRouter aggregatorfree$0per Mtok in$0per Mtok outopenrouter.ai · read 2026-09-16
OpenRouter aggregatordeepinfra/fp4$0.5per Mtok in$2.2per Mtok out$0.1per Mtok cachedopenrouter.ai · read 2026-08-25
OpenRouter aggregatorbaseten/fp4$0.6per Mtok in$2.4per Mtok out$0.12per Mtok cachedopenrouter.ai · read 2026-08-25
OpenRouter aggregatornot on the seller's list todaybatch$0.6per Mtok in$3.6per Mtok out$0.2per Mtok cachedopenrouter.ai · read 2026-08-24
OpenRouter aggregatornot on the seller's list todaytogether$0.6per Mtok in$3.6per Mtok out$0.2per Mtok cachedopenrouter.ai · read 2026-08-25
OpenRouter aggregatorstandard$0.62per Mtok in$3.12per Mtok out$0.19per Mtok cachedopenrouter.ai · read 2026-09-16
OpenRouter aggregatorvenice/fp8$0.62per Mtok in$3.12per Mtok out$0.19per Mtok cachedopenrouter.ai · read 2026-08-25
Requesty 3 ways$0.33per Mtok in$1.68per Mtok out
Requesty aggregatornot on the seller's list todaydoubleword flex$0.33per Mtok in$1.68per Mtok outrouter.requesty.ai · read 2026-08-25
Requesty aggregatordoubleword$0.37per Mtok in$1.87per Mtok outrouter.requesty.ai · read 2026-09-15
Requesty aggregatorfireworks$0.6per Mtok in$2.4per Mtok out$0.12per Mtok cachedrouter.requesty.ai · read 2026-08-28
Requesty aggregatornebius$1per Mtok in$3per Mtok out$1per Mtok cachedrouter.requesty.ai · read 2026-08-28
Nous Research aggregatornot on the seller's list todaybatch$0.48per Mtok in$2.88per Mtok out$0.16per Mtok cachedinference-api.nousresearch.com · read 2026-08-25
Nous Research aggregatornot on the seller's list todaybatch resold$0.48per Mtok in$2.88per Mtok out$0.16per Mtok cachedinference-api.nousresearch.com · read 2026-08-25
Nous Research aggregatornot on the seller's list todayresold$0.48per Mtok in$2.88per Mtok out$0.16per Mtok cachedinference-api.nousresearch.com · read 2026-08-25
Nous Research aggregatorstandard$0.5per Mtok in$2.2per Mtok out$0.1per Mtok cachedinference-api.nousresearch.com · read 2026-09-11
DeepInfra aggregatornot on the seller's list todayalt$0.5per Mtok in$2.2per Mtok outapi.deepinfra.com · read 2026-08-25
DeepInfra aggregatorstandard$1per Mtok in$5per Mtok out$0.1per Mtok cachedapi.deepinfra.com · read 2026-09-15
DeepInfra aggregatornot on the seller's list todaybf16$1per Mtok in$5per Mtok outapi.deepinfra.com · read 2026-08-25
ElectronHub aggregatorstandard$0.5per Mtok in$2.5per Mtok outapi.electronhub.ai · read 2026-09-16
Vercel AI Gateway aggregatorstandard$0.5per Mtok in$2.4per Mtok out$0.12per Mtok cachedvercel.com · read 2026-08-25
Vercel AI Gateway aggregatornot on the seller's list todaysandbox$0.5per Mtok in$2.4per Mtok outvercel.com · read 2026-08-25
Baseten 0 ways$0.6per Mtok in$2.4per Mtok out$0.6per Mtok cached
Baseten aggregatornot on the seller's list todaystandard$0.6per Mtok in$2.4per Mtok out$0.6per Mtok cachedbaseten.co · read 2026-08-25
Fireworks AI aggregatorstandard$0.6per Mtok in$2.4per Mtok out$0.12per Mtok cacheddocs.fireworks.ai · read 2026-08-24
Hugging Face Inference Providers 2 ways$0.6per Mtok in$2.4per Mtok out
Hugging Face Inference Providers aggregatorfireworks-ai$0.6per Mtok in$2.4per Mtok outrouter.huggingface.co · read 2026-08-25
Hugging Face Inference Providers aggregatornot on the seller's list todaytogether$0.6per Mtok in$3.6per Mtok outrouter.huggingface.co · read 2026-08-25
Hugging Face Inference Providers aggregatordeepinfra$1per Mtok in$5per Mtok outrouter.huggingface.co · read 2026-08-25
Together AI aggregatorstandard$0.6per Mtok in$3.6per Mtok out$0.2per Mtok cacheddocs.together.ai · read 2026-08-24
Venice AI aggregatorstandard$0.62per Mtok in$3.12per Mtok out$0.19per Mtok cachedmodels.dev · read 2026-09-16
Nebius Token Factory aggregatorstandard$1per Mtok in$3per Mtok outtokenfactory.nebius.com · read 2026-08-25

Measured 24 standings

PlaceBoardMetricScore
33rdof 161Dtbench — Epoch AIAccuracy90.13
49thof 123Lmca — Epoch AIScore36.9
51stof 65Apex agents — Epoch AIPass@1 score0.115
51stof 127Mystery game puzzles — Epoch AImean_score20
61stof 64Proofbench — Epoch AIAccuracy2
71stof 143Artificial Analysis · Agentic IndexIndex21.7
75thof 290OTIS Mock AIME 2024-2025mean_score86.667
81stof 313GPQA Diamondmean_score85.354
83rdof 147Design Arena · 3d (models)Elo1163
85thof 92Design Arena · asciiart (models)Elo1097
86thof 109Design Arena · svg (models)Elo1099
91stof 177Critpt — Epoch AIAccuracy3.143
94thof 184Artificial Analysis · Coding IndexIndex49.3
95thof 170Weirdml — Epoch AIAccuracy43.45
97thof 155Design Arena · gamedev (models)Elo1155
100thof 150Design Arena · uicomponent (models)Elo1151
101stof 302Artificial Analysis · Intelligence IndexArtificial Analysis Intelligence Index23
102ndof 152Design Arena · dataviz (models)Elo1156
105thof 156Design Arena · codecategories (models)Elo1155
109thof 162Design Arena · website (models)Elo1145
109thof 402LMArena · TextScore (Elo)1426
116thof 168Scicode — Epoch AIScore39.931
123rdof 222Chess puzzles — Epoch AImean_score12
291stof 656Epoch capabilities index — Epoch AIECI Score146.3

About

Nemotron 3 Ultra — a text model from NVIDIA, sold by 13 companies from $0.5 in and $2.5 out per million tokens, placed 33rd of 161 on Dtbench — Epoch AI.

It takes text and returns text, with a context window of 1,000,000 tokens. It was published in June 2026, trained on material up to February 2026. Its sellers say it can reason step by step and call a tool. The catalogue files it under reasoning and agents. Thirteen companies sell it. The cheapest is $0.5 in and $2.5 out per million tokens at ElectronHub. Beside the standard rate there are separately routed and regional lanes. It has been measured on 24 boards, and stands best at 33rd of 161 on Dtbench — Epoch AI.

Every current figure

Maker
NVIDIA
Register
model
Takes
text
Returns
text
Context
1,000,000 tokens
Longest answer
512,300 tokens
Published
June 2026
Knowledge to
February 2026
Parameters
303 billion
Licence
not read
Sellers
13
Maker's own price
not read
Price
$0.5 in and $2.5 out per million tokens — ElectronHub
Boards
24
Best place
33rd of 161 — Dtbench — Epoch AI

Known as 10 names

nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55Bnvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16fireworks/nemotron-3-ultra-nvfp4nvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-NVFP4nvidia/Nemotron-3-Ultra-550b-a55bnvidia/nemotron-3-ultra-550b-a55b:batchdoubleword/nvidia-nemotron-3-ultradoubleword/nvidia-nemotron-3-ultra:flexnebius/nvidia/nemotron-3-ultra-550b-a55bnvidia/NVIDIA-Nemotron-3-Ultra-550B-A55B-BF16:peft:262144