Claude Sonnet 4.5 vs NVIDIA Nemotron 3 Nano 4B
Wins 5 of 6 areas
Coding · Agents · Reasoning · Facts · Long documents
Wins 0 of 6 areas
—
Claude Sonnet 4.5 is the stronger all-rounder.
Scores updated · 18 tests both models report · How we compare
Where each one wins
Tests won in each of the six areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- CodingWriting and fixing software30Claude Sonnet 4.53 of 3 tests
- ReasoningHard problems that need careful thinking30Claude Sonnet 4.53 of 3 tests
- AgentsCarrying out multi-step tasks on its own20Claude Sonnet 4.52 of 3 tests · 1 tie
- FactsGetting facts right instead of making them up20Claude Sonnet 4.52 of 2 tests
- Long documentsFinding answers in very long texts10Claude Sonnet 4.51 of 1 test
- Following instructionsDoing exactly what it is asked00Even0 each · 1 tie
Long documents and following instructions rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Sonnet 4.5 pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+52.1points ahead
- Reasons across sets of long documentsAA-LCR+50.6points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+39.5points ahead
Where NVIDIA Nemotron 3 Nano 4B pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 18 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Sonnet 4.5
- Terminal-Bench 2.1Claude Sonnet 4.5 by 52.155.83.7+52.1
- SciCodeClaude Sonnet 4.5 by 29.645.716.1+29.6
- Terminal-Bench HardClaude Sonnet 4.5 by 28.835.66.8+28.8
AgentsClaude Sonnet 4.5
- GDPValClaude Sonnet 4.5 by 20.520.50+20.5
- τ-Bench V3 · BankingClaude Sonnet 4.5 by 17.524.57+17.5
- Terminal-Bench 4.0tie00tie
ReasoningClaude Sonnet 4.5
- GPQA DiamondClaude Sonnet 4.5 by 32.183.451.3+32.1
- Humanity's Last ExamClaude Sonnet 4.5 by 12.917.84.9+12.9
- CritPtClaude Sonnet 4.5 by 1.11.10+1.1
FactsClaude Sonnet 4.5
- AA-Omniscience · Non-hallucinationClaude Sonnet 4.5 by 39.550.911.4+39.5
- AA-Omniscience · AccuracyClaude Sonnet 4.5 by 23.332.99.6+23.3
Long documentsClaude Sonnet 4.5
- AA-LCRClaude Sonnet 4.5 by 50.672.321.7+50.6
Other results5 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- AA-OmniscienceClaude Sonnet 4.5 by 70.4-0.1-70.5+70.4
- τ²-Bench Telecom (AA run)Claude Sonnet 4.5 by 5078.128.1+50
- Artificial Analysis Coding IndexClaude Sonnet 4.5 by 44.152.18+44.1
- AA IntelligenceClaude Sonnet 4.5 by 15.920.74.8+15.9
- AA Agentic IndexClaude Sonnet 4.5 by 15.217.52.3+15.2
Questions people ask
Which is better, Claude Sonnet 4.5 or NVIDIA Nemotron 3 Nano 4B?
Claude Sonnet 4.5 wins five of the six areas where both have results: coding, agents, reasoning, facts and long documents. NVIDIA Nemotron 3 Nano 4B wins none. They are level on following instructions.
Which is better for coding?
Claude Sonnet 4.5. It wins 3 of the 3 coding tests both models report; NVIDIA Nemotron 3 Nano 4B wins none.
How do you compare the two?
We use the 18 benchmark tests both models have published scores on. The verdict counts the 13 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 5 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.