DeepSeek R1 0528NVIDIA Nemotron 3 Ultra 550B A55Bv = reported by the model’s maker. — = no public score yet. Arena bars span the range across every model we grade.
What it costs you
Drag to match your monthly usage.
DeepSeek R1 0528$186 /month
NVIDIA Nemotron 3 Ultra 550B A55B$188 /month
DeepSeek R1 0528 saves you $2.00 a month at this usage, $24.00 a year.
At a glance
Attribute
DeepSeek R1 0528
NVIDIA Nemotron 3 Ultra 550B A55B
Made by
DeepSeek
NVIDIA
Availability
Coming soon
Coming soon
Overall grade
Excellent · 70.6
Excellent · 72.8
Overall rank
#29 of 67
#26 of 67
Input price
$0.50 per 1M
$0.50 per 1M
Output price
$2.15 per 1M
$2.20 per 1M
Context window
163,840 tokens
262,144 tokens
Reasoning levels
No
No
Reads images
No
No
Model ID
deepseek-r1-0528
nvidia-nemotron-3-ultra-550b-a55b
Try both with one key
Same endpoint, same key, both hosted in the USA. Change one word to switch models, in Claude Code, Cursor, Cline or your own code.
# Ask either model the same thingcurlhttps://fullsendai.com/v1/chat/completions \-H"Authorization: Bearer $FULLSEND_API_KEY" \-d'{"model": "deepseek-r1-0528", "messages": [...]}'# …then swap one word-d'{"model": "nvidia-nemotron-3-ultra-550b-a55b", "messages": [...]}'
Questions
Is DeepSeek R1 0528 or NVIDIA Nemotron 3 Ultra 550B A55B better?
NVIDIA Nemotron 3 Ultra 550B A55B grades 72.8 against 70.6 for DeepSeek R1 0528, from public benchmarks.
Which is cheaper, DeepSeek R1 0528 or NVIDIA Nemotron 3 Ultra 550B A55B?
DeepSeek R1 0528: $0.50 in and $2.15 out per million tokens, against $0.50 and $2.20 through FullsendAI.
Which has the larger context window?
NVIDIA Nemotron 3 Ultra 550B A55B, with 262,144 tokens.
Can I use both with one API key?
Yes, once they launch: both are coming soon, at the prices shown, and both will use the same FullsendAI key.
Scores: LMArena (CC BY 4.0), Aider (aider.chat), SWE-bench, Terminal-Bench, LiveCodeBench, and model makers’ published results where marked v. Prices are FullsendAI’s, per million tokens. Data as of Oct 28, 2026.
