Model provider / NVIDIA

NVIDIA Nemotron 3 Ultra 550b A55b (free)

US · United States · First tracked 4 Jun 2026 · Pricing verified 12 Oct 2026

Official model page not yet on record

Listed price on OpenRouter ↗

Global rank

Ranked 7 of the tracked routed-model set.

4.00%Routed share

▲ 1Place this week

19 weeksRanked · 0 in top 3

Low costPrice position

Live model recordTrailing seven days ending 11 Oct 2026 · refreshed daily

The current read

What the evidence shows today.

The page leads with what has been observed, then separates price, capability and history so a buyer can see both the signal and its limits.

Adoption

+3.18 percentage points

Routed share moved from 0.82% to 4.00% across 19 tracked weeks.

Economics

$0 in · $0 out

Per one million tokens. Cached input price not listed on OpenRouter.

Operating fit

1M context · open weights

Reasoning and tool calling are supported.

Model economics

Published price, translated into a workload.

Live per-token pricing via OpenRouter, verified 12 Oct 2026. Batch and long-context tiers are not published in the feed, so they are omitted rather than estimated.

Input

$0.00

/ 1M tokens

Output

$0.00

/ 1M tokens

Cached input

Not listed on OpenRouter

/ 1M tokens

Free tier

Available

on OpenRouter

Context window

tokens

Weights

Open weights

license basis

Monthly tasks Input tokens / task Output tokens / task Cached input 70%

Estimated monthly cost

Input (uncached)$0

Cached input$0

Output$0

$0 per completed task

An estimate from published per-token pricing and your assumptions. Actual costs vary by provider and usage tier.

Compare the same workload

NVIDIA Nemotron 3 Ultra 550b A55b (free) (You)$0

DeepSeek V4 Flash$0

Google Gemini 2.5 Flash$0

Anthropic Claude Sonnet 5$0

Same workload as the calculator above, at each model's current price. Monthly USD.

Price and adoption

Every point is an observed week.

Routed-token share over time, with no interpolation presented as evidence. A price line joins it as real changes are recorded.

All 19 tracked weeks · 7 Jun to 11 Oct. Longer periods open as the record grows.

Operating profile

What it supports, and what remains undisclosed.

Verified support, explicit non-support and missing disclosure read differently on purpose. A blank is never made to look like a negative finding.

Capabilities

Context window	1M
Reasoning	✓ Supported
Tool calling	✓ Supported
Structured output	— Not supported
Image input	— Not supported
Audio input	— Not supported
Video input	— Not supported
Open weights	✓ Yes
API availability	✓ Yes
Commercial license	Verify terms with the provider

Model facts

Current rank: #7
Peak rank: #6
Routed share: 4.00%
Peak share: 5.08%
Weeks ranked: 19
First tracked: 4 Jun 2026
Region of origin: US · United States
Provider: NVIDIA
Model family: Not yet on record
Release date: Not yet on record
Type: Text
Modalities: text
Context window: 1M tokens
Weights: Open weight
License: Not yet on record

94.51%Availability (30d)

5.49%Error / downtime

Median provider uptime across OpenRouter endpoints, last 30 days. Latency and throughput are not published by the source and are not estimated here.

Why it is moving

Observed first. Interpreted only when sourced.

Observed data

In the week ending 11 Oct 2026, NVIDIA Nemotron 3 Ultra 550b A55b (free) rose 1 place to #7 with 4.00% of routed tokens and a peak rank of #6. Over 19 tracked weeks its routed share has moved from 0.82% to 4.00% (+3.18 pp).

yellow3 analysis

A sourced weekly interpretation of what is driving this model's routing is added as the record accumulates. yellow3 does not publish a reason for movement unless the routed-traffic data or a cited source supports it.

Model and provider signals

What changed around this model.

Dated developments concerning this model and its provider. Facts, evidence status and yellow3 analysis remain separate.

3 verified signals in this recordEvidence verified through 11 Oct 2026

23 Aug 2026Measured observation
NVIDIA Nemotron 3 Ultra 550b A55b (free) reached its highest recorded routed share.
Rank moved from #10 to #7 as routed share reached 5.08% in the seven days ending 23 Aug 2026. The record does not assign a cause.
ConcernsModel · NVIDIA Nemotron 3 Ultra 550b A55b (free)Open signal Close signal
Adoption move
Rank
#10#7
Routed share
2.85%5.08%
Evidence status
Measured observation
Before and after recorded
Source and dates
OpenRouter routing rankings
Open original source for OpenRouter routing rankings (opens in a new tab)
Event date
23 Aug 2026
Publication date
Not disclosed
Latest verification
11 Oct 2026
Why it matters
No interpretation is published for this signal. The observation stands on its own.
Related context
Price and adoption Adoption history
Evidence boundary
Fact, source and yellow3 interpretation remain separate. Sequence is not converted into causation.
Corrections: none recorded
12 Jul 2026Measured observation
NVIDIA Nemotron 3 Ultra 550b A55b (free) entered the routed top 10.
Rank moved from #12 to #8 as routed share reached 3.88% in the seven days ending 12 Jul 2026. The record does not assign a cause.
ConcernsModel · NVIDIA Nemotron 3 Ultra 550b A55b (free)Open signal Close signal
Adoption move
Rank
#12#8
Routed share
2.09%3.88%
Evidence status
Measured observation
Before and after recorded
Source and dates
OpenRouter routing rankings
Open original source for OpenRouter routing rankings (opens in a new tab)
Event date
12 Jul 2026
Publication date
Not disclosed
Latest verification
11 Oct 2026
Why it matters
No interpretation is published for this signal. The observation stands on its own.
Related context
Price and adoption Adoption history
Evidence boundary
Fact, source and yellow3 interpretation remain separate. Sequence is not converted into causation.
Corrections: none recorded
14 Jun 2026Measured observation
NVIDIA Nemotron 3 Ultra 550b A55b (free) entered the routed top 20.
Rank moved from #27 to #12 as routed share reached 1.78% in the seven days ending 14 Jun 2026. The record does not assign a cause.
ConcernsModel · NVIDIA Nemotron 3 Ultra 550b A55b (free)Open signal Close signal
Adoption move
Rank
#27#12
Routed share
0.82%1.78%
Evidence status
Measured observation
Before and after recorded
Also this week
Biggest weekly rise +15 places
Recorded in the same observed week as this signal, and part of the same movement rather than separate events.
Source and dates
OpenRouter routing rankings
Open original source for OpenRouter routing rankings (opens in a new tab)
Event date
14 Jun 2026
Publication date
Not disclosed
Latest verification
11 Oct 2026
Why it matters
No interpretation is published for this signal. The observation stands on its own.
Related context
Price and adoption Adoption history
Evidence boundary
Fact, source and yellow3 interpretation remain separate. Sequence is not converted into causation.
Corrections: none recorded

Coverage boundary

OpenRouter usage represents routed developer traffic, not the whole AI market. Timing near an adoption change does not establish causation. Sources checked for this record: OpenRouter routed-traffic rankings, OpenRouter listed price. Provider announcements and independent reporting are not yet monitored and are absent rather than nil.

History and evidence

The record behind the headline.

The current position stays connected to every observed week, price change and milestone.

Weekly rank and routed-share history for NVIDIA Nemotron 3 Ultra 550b A55b (free)
Week ending	Rank	Routed share	Δ share	Movement	Region rank	Status
11 Oct 2026	#7	4.00%	+0.59	▲ 1places up	#2	ranked
4 Oct 2026	#8	3.41%	-0.48	▼ 1places down	#2	ranked
27 Sep 2026	#7	3.89%	+0.40	▲ 1places up	#2	ranked
20 Sep 2026	#8	3.49%	+0.68	▲ 1places up	#2	ranked
13 Sep 2026	#9	2.81%	-0.34	▼ 1places down	#2	ranked
6 Sep 2026	#8	3.15%	-1.56	▼ 1places down	#2	ranked
30 Aug 2026	#7	4.71%	-0.37	–no change	#2	ranked
23 Aug 2026	#7	5.08%	+2.24	▲ 3places up	#2	ranked
16 Aug 2026	#10	2.85%	-0.64	▼ 2places down	#4	ranked
9 Aug 2026	#8	3.49%	-0.79	▼ 2places down	#2	ranked
2 Aug 2026	#6	4.27%	+0.24	–no change	#1	ranked
26 Jul 2026	#6	4.03%	-0.90	–no change	#1	ranked
19 Jul 2026	#6	4.93%	+1.05	▲ 2places up	#1	ranked
12 Jul 2026	#8	3.88%	+1.79	▲ 4places up	#2	ranked
5 Jul 2026	#12	2.09%	+0.56	▲ 3places up	#5	ranked
28 Jun 2026	#15	1.53%	+0.18	▲ 2places up	#6	ranked
21 Jun 2026	#17	1.35%	-0.43	▼ 5places down	#7	ranked
14 Jun 2026	#12	1.78%	+0.96	▲ 15places up	#5	ranked
7 Jun 2026	#27	0.82%	–	NEW	#15	NEW

Price history

Date	Input / 1M	Output / 1M	Change	Source
17 Sep 2026	$0.00	$0.00	—	OpenRouter listed price

This model is listed on more than one OpenRouter endpoint. Price observations recorded before 17 September 2026 did not identify the endpoint, so they could not be attributed reliably and have been withdrawn. Price history for this model includes only observations recorded from 17 September 2026, when yellow3 began recording the endpoint with each observation. See the correction record.

Milestones

4 Jun 2026First trackedDerived from yellow3 routed-traffic data
14 Jun 2026Entered top 20Derived from yellow3 routed-traffic data
14 Jun 2026Biggest weekly rise +15 placesDerived from yellow3 routed-traffic data
21 Jun 2026Biggest weekly fall -5 placesDerived from yellow3 routed-traffic data
12 Jul 2026Entered top 10Derived from yellow3 routed-traffic data
23 Aug 2026Peak routed share 5.08%Derived from yellow3 routed-traffic data

Sources and methodology

Every claim keeps its route back to evidence.

Region reflects where the model's developer is headquartered. Figures are OpenRouter routing traffic, aggregated over a trailing seven days - developer routing behaviour, not the whole market.

Read the research framework →

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