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Nemotron 3 Ultra (free)

NVIDIA · nemotron-3-ultra-550b-a55b

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Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy

Specification

most-agreed values

Context
1M
Max output
1M
Released
2026-06-04
Knowledge cutoff
Retires
2026-08-27
Open weights
yes
Input
text
Output
text

Price

US dollars per million tokens · most-agreed

Input
$1.00
Output
$3.00
Cache read
$0.25

Quality

1 benchmark · 1 source

Composite
12th
percentile of 334 scored models
Rank
294 / 334
±0.53 sd
Evidence
1 × 1
too little evidence to place with confidence
Effort range
one configuration only
general13th1/1 bench

Every score

one row per source and configuration — nothing averaged away

BenchmarkScoreConfigurationSourceRun
LiveBench68.7default · 23 runsLiveBench2026-06-25

The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.

Available from 17 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
bothub · freefreefree1M128K
kenarifreefree1M128K
kilo · freefreefree1M66K
openrouter · freefreefree1M66K
requestyfreefree1M66K
unorouter · freefreefree1M128K
perplexity$0.25$2.50$0.25
kilo$0.50$2.20$0.10203K183K
nano-gpt$0.50$2.50$0.251M66K
nano-gpt · thinking$0.50$2.50$0.251M66K
nvidia$0.50$2.50$0.151M66K
openrouter
$0.60
$0.625
$2.40
$3.125
$0.12
$0.1875
262K
183K
33K
together_ai$0.60$3.60$0.20512K2026-08-27
togetherai$0.60$3.60$0.20512K512K
vercel$0.60$2.40$0.121M65K
edenai
$1.00
$0.50
$3.00
$2.20
$1.00
$0.10
1M
262K
128K
nebius$1.00$3.00$1.001M1M

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02edenaiCache read$0.10
2026-09-04edenaiCache read$1.00
2026-09-02openrouterCache read$0.10
2026-09-02openrouterCache read$0.1875
2026-09-03openrouterCache read$0.12
2026-09-04openrouterCache read$0.1875
2026-09-06openrouterCache read$0.1875
2026-09-14openrouterCache read$0.12
2026-09-02edenaiInput$0.50
2026-09-04edenaiInput$1.00
2026-09-02openrouterInput$0.50
2026-09-02openrouterInput$0.625
2026-09-03openrouterInput$0.60
2026-09-04openrouterInput$0.625
2026-09-06openrouterInput$0.625
2026-09-14openrouterInput$0.60
2026-09-02openrouter · freeInputfree
2026-09-06openrouter · freeInputfree
2026-09-02edenaiOutput$2.20
2026-09-04edenaiOutput$3.00
2026-09-02openrouterOutput$2.20
2026-09-02openrouterOutput$3.125
2026-09-03openrouterOutput$2.40
2026-09-04openrouterOutput$3.125
2026-09-06openrouterOutput$3.125
2026-09-14openrouterOutput$2.40
2026-09-02openrouter · freeOutputfree
2026-09-06openrouter · freeOutputfree
2026-09-03nebiusInput$1.00
2026-09-06nebiusInput$1.00
2026-09-03nebiusOutput$3.00
2026-09-06nebiusOutput$3.00

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