Claude 3 Haiku vs Mi:dm K 2.5 Pro
Wins 2 of 6 areas
Facts · Long documents
Wins 4 of 6 areas
Coding · Agents · Reasoning · Following instructions
Mi:dm K 2.5 Pro is the stronger all-rounder.Claude 3 Haiku is better at facts.
Scores updated · 13 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 thinking02Mi:dm K 2.5 Pro2 of 3 tests · 1 tie
- CodingWriting and fixing software01Mi:dm K 2.5 Pro1 of 1 test
- AgentsCarrying out multi-step tasks on its own01Mi:dm K 2.5 Pro1 of 1 test
- Following instructionsDoing exactly what it is asked01Mi:dm K 2.5 Pro1 of 1 test
- FactsGetting facts right instead of making them up10Claude 3 Haiku1 of 2 tests · 1 tie
- Long documentsFinding answers in very long texts10Claude 3 Haiku1 of 1 test
Coding, agents, 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 Mi:dm K 2.5 Pro pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+32.7points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+13.2points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+4points ahead
Where Claude 3 Haiku pulls ahead
- Reasons across sets of long documentsAA-LCR+18.7points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+13.4points ahead
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.
ReasoningMi:dm K 2.5 Pro
- GPQA DiamondMi:dm K 2.5 Pro by 32.737.470.1+32.7
- Humanity's Last ExamMi:dm K 2.5 Pro by 44.18.1+4
- CritPttie00tie
FactsClaude 3 Haiku
- AA-Omniscience · Non-hallucinationClaude 3 Haiku by 13.419.56.1+13.4
- AA-Omniscience · Accuracytie17.617.9tie
Following instructionsMi:dm K 2.5 Pro
- IFBenchMi:dm K 2.5 Pro by 13.236.149.3+13.2
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.
- τ²-Bench Telecom (AA run)Mi:dm K 2.5 Pro by 65.421.186.5+65.4
- AA Agentic IndexMi:dm K 2.5 Pro by 29.8736.8+29.8
- AA-OmniscienceClaude 3 Haiku by 10.6-48.6-59.2+10.6
- AA IntelligenceMi:dm K 2.5 Pro by 5.45.611+5.4
Questions people ask
Which is better, Claude 3 Haiku or Mi:dm K 2.5 Pro?
Mi:dm K 2.5 Pro wins four of the six areas where both have results: coding, agents, reasoning and following instructions. Claude 3 Haiku wins facts and long documents.
Which is better for coding?
Mi:dm K 2.5 Pro. It wins the one coding test both models report.
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.