Nemotron 3 Ultra 550B A55B
Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy
Context
1,000,000
Max output
65,000
Input / 1M
$0.50
Output / 1M
$2.50
Providers
1
01Profile
Profile
Released
2026-06-04
Last updated
2026-06-04
Knowledge cutoff
—
Weights
Open
02Capabilities
Capabilities
Input
text
Output
text
Reasoning
Yes
Tool calling
Yes
Structured output
No
Attachments
No
Cache read
—
Cache write
—
03Pricing
Pricing across 1 providers
Per 1M tokens, USD. Sorted by input price. First-party row highlighted.
04History
Change history
6+ recent events since 2026-06-04
2026-07-11ContextpioneerContext window512,288→ 1,000,000
2026-07-11ContextpioneerContext window1,000,000→ new
2026-07-11ContextpioneerMax output16,384→ 65,000
2026-06-30ContextpioneerContext window—→ 512,288
2026-06-29ContextpioneerContext window262,144→ new
2026-06-08Addedpioneeroffering→ new