Claude Haiku 4.5 vs Nex-N2-Pro
Wins 0 of 6 areas
—
Wins 5 of 6 areas
Coding · Agents · Reasoning · Long documents · Following instructions
Nex-N2-Pro is the stronger all-rounder.
Scores updated · 16 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.
- ReasoningHard problems that need careful thinking03Nex-N2-Pro3 of 3 tests
- CodingWriting and fixing software02Nex-N2-Pro2 of 2 tests
- AgentsCarrying out multi-step tasks on its own02Nex-N2-Pro2 of 2 tests
- Long documentsFinding answers in very long texts01Nex-N2-Pro1 of 1 test
- Following instructionsDoing exactly what it is asked01Nex-N2-Pro1 of 1 test
- FactsGetting facts right instead of making them up11Even1 each
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.
Nex-N2-Pro costs 79% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Nex-N2-Pro pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+23.6points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+23.3points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+22points ahead
Where Claude Haiku 4.5 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+67.6points ahead
Every test, side by side
All 16 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingNex-N2-Pro
- Terminal-Bench 2.1Nex-N2-Pro by 23.644.267.8+23.6
- SciCodeNex-N2-Pro by 1.142.243.3+1.1
AgentsNex-N2-Pro
- GDPValNex-N2-Pro by 18.511.830.3+18.5
- τ-Bench V3 · BankingNex-N2-Pro by 8.29.317.5+8.2
ReasoningNex-N2-Pro
- Humanity's Last ExamNex-N2-Pro by 23.310.433.7+23.3
- GPQA DiamondNex-N2-Pro by 2267.289.2+22
- CritPtNex-N2-Pro by 8.608.6+8.6
FactsEven
- AA-Omniscience · Non-hallucinationClaude Haiku 4.5 by 67.672.75.1+67.6
- AA-Omniscience · AccuracyNex-N2-Pro by 16.81834.8+16.8
Following instructionsNex-N2-Pro
- IFBenchNex-N2-Pro by 11.954.366.2+11.9
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.
- τ²-Bench Telecom (AA run)Nex-N2-Pro by 26.954.781.6+26.9
- AA-OmniscienceClaude Haiku 4.5 by 22.6-4.4-27.1+22.6
- AA Agentic IndexNex-N2-Pro by 20.910.331.2+20.9
- Artificial Analysis Coding IndexNex-N2-Pro by 15.243.959.1+15.2
- AA IntelligenceNex-N2-Pro by 11.316.928.2+11.3
Questions people ask
Which is better, Claude Haiku 4.5 or Nex-N2-Pro?
Nex-N2-Pro wins five of the six areas where both have results: coding, agents, reasoning, long documents and following instructions. Claude Haiku 4.5 wins none. They are level on facts.
Which is better for coding?
Nex-N2-Pro. It wins 2 of the 2 coding tests both models report; Claude Haiku 4.5 wins none.
Which is cheaper?
Claude Haiku 4.5 costs $1.00 per million input tokens and $5.00 per million output tokens; Nex-N2-Pro costs $0.25 and $1.00. That makes Nex-N2-Pro about 79% cheaper for the same work.
How do you compare the two?
We use the 16 benchmark tests both models have published scores on. The verdict counts the 11 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.