Claude 3 Haiku vs Reka Flash 3
Wins 3 of 5 areas
Facts · Long documents · Following instructions
Wins 2 of 5 areas
Coding · Reasoning
Claude 3 Haiku is the stronger all-rounder.Reka Flash 3 is cheaper and better at reasoning.
Scores updated · 14 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.
- FactsGetting facts right instead of making them up20Claude 3 Haiku2 of 2 tests
- Long documentsFinding answers in very long texts10Claude 3 Haiku1 of 1 test
- Following instructionsDoing exactly what it is asked10Claude 3 Haiku1 of 1 test
- ReasoningHard problems that need careful thinking01Reka Flash 31 of 3 tests · 2 ties
- CodingWriting and fixing software01Reka Flash 31 of 2 tests · 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.
Reka Flash 3 costs 33% 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 Claude 3 Haiku pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+10.8points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+5.7points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+3.9points ahead
Where Reka Flash 3 pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+15.5points ahead
- Code for real scientific research problemsSciCode+8.1points ahead
Every test, side by side
All 14 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingReka Flash 3
- SciCodeReka Flash 3 by 8.118.626.7+8.1
- Terminal-Bench Hardtie0.80tie
ReasoningReka Flash 3
- GPQA DiamondReka Flash 3 by 15.537.452.9+15.5
- Humanity's Last Examtie4.14.4tie
- CritPttie00tie
FactsClaude 3 Haiku
- AA-Omniscience · Non-hallucinationClaude 3 Haiku by 10.819.58.7+10.8
- AA-Omniscience · AccuracyClaude 3 Haiku by 3.917.613.7+3.9
Following instructionsClaude 3 Haiku
- IFBenchClaude 3 Haiku by 5.736.130.4+5.7
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)Claude 3 Haiku by 21.121.10+21.1
- AA-OmniscienceClaude 3 Haiku by 16.5-48.6-65.1+16.5
- AA Agentic IndexClaude 3 Haiku by 770+7
- Artificial Analysis Coding IndexReka Flash 3 by 2.26.78.9+2.2
- AA Intelligencetie5.65.6tie
Questions people ask
Which is better, Claude 3 Haiku or Reka Flash 3?
Claude 3 Haiku wins three of the five areas where both have results: facts, long documents and following instructions. Reka Flash 3 wins coding and reasoning, and costs 33% less.
Which is better for coding?
Reka Flash 3. It wins 1 of the 2 coding tests both models report; Claude 3 Haiku wins none, and 1 is a tie.
Which is cheaper?
Claude 3 Haiku costs $0.25 per million input tokens and $1.25 per million output tokens; Reka Flash 3 costs $0.20 and $0.80. That makes Reka Flash 3 about 33% cheaper for the same work.
How do you compare the two?
We use the 14 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 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.