Claude Haiku 4.5 vs Llama 3.3 Nemotron Super 49B V1
Wins 5 of 5 areas
Coding · Reasoning · Facts · Long documents · Following instructions
Wins 0 of 5 areas
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Claude Haiku 4.5 is the stronger all-rounder.
Scores updated · 13 tests both models report · How we compare
Where each one wins
Tests won in each of the five 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.
- ReasoningHard problems that need careful thinking20Claude Haiku 4.52 of 3 tests · 1 tie
- CodingWriting and fixing software20Claude Haiku 4.52 of 2 tests
- FactsGetting facts right instead of making them up10Claude Haiku 4.51 of 2 tests · 1 tie
- Long documentsFinding answers in very long texts10Claude Haiku 4.51 of 1 test
- Following instructionsDoing exactly what it is asked10Claude Haiku 4.51 of 1 test
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 Haiku 4.5 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+63.7points ahead
- Reasons across sets of long documentsAA-LCR+56points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+16.2points ahead
Where Llama 3.3 Nemotron Super 49B V1 pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 13 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Haiku 4.5
- Terminal-Bench HardClaude Haiku 4.5 by 27.327.30+27.3
- SciCodeClaude Haiku 4.5 by 1442.228.2+14
ReasoningClaude Haiku 4.5
- Humanity's Last ExamClaude Haiku 4.5 by 4.810.45.6+4.8
- GPQA DiamondClaude Haiku 4.5 by 2.967.264.3+2.9
- CritPttie00tie
FactsClaude Haiku 4.5
- AA-Omniscience · Non-hallucinationClaude Haiku 4.5 by 63.772.79+63.7
- AA-Omniscience · Accuracytie1817.1tie
Following instructionsClaude Haiku 4.5
- IFBenchClaude Haiku 4.5 by 16.254.338.1+16.2
Other results4 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 Haiku 4.5 by 53.9-4.4-58.3+53.9
- Artificial Analysis Coding IndexClaude Haiku 4.5 by 34.543.99.4+34.5
- τ²-Bench Telecom (AA run)Claude Haiku 4.5 by 27.854.726.9+27.8
- AA IntelligenceClaude Haiku 4.5 by 816.98.9+8
Questions people ask
Which is better, Claude Haiku 4.5 or Llama 3.3 Nemotron Super 49B V1?
Claude Haiku 4.5 wins all five areas where both have results: coding, reasoning, facts, long documents and following instructions. Llama 3.3 Nemotron Super 49B V1 wins none.
Which is better for coding?
Claude Haiku 4.5. It wins 2 of the 2 coding tests both models report; Llama 3.3 Nemotron Super 49B V1 wins none.
How do you compare the two?
We use the 13 benchmark tests both models have published scores on. The verdict counts the 9 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 4 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.