Claude Haiku 4.5 vs Doubao Seed Code
Wins 3 of 7 areas
Coding · Long documents · Following instructions
Wins 3 of 7 areas
Agents · Reasoning · Images and charts
The two are evenly matched.Claude Haiku 4.5 is better at coding and long documents; Doubao Seed Code at reasoning and agents.
Scores updated · 16 tests both models report · How we compare
Where each one wins
Tests won in each of the seven 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 thinking02Doubao Seed Code2 of 3 tests · 1 tie
- AgentsCarrying out multi-step tasks on its own01Doubao Seed Code1 of 1 test
- Images and chartsUnderstanding pictures, charts and video01Doubao Seed Code1 of 1 test
- CodingWriting and fixing software10Claude 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
- FactsGetting facts right instead of making them up11Even1 each
Agents, images and charts, 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 three tests each model wins by the widest margin. Scores are out of 100.
Where Doubao Seed Code pulls ahead
- Real work tasks from 44 professionsGDPVal+12.5points ahead
- Harder college exam questions with imagesMMMU-Pro+9.5points ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+9.2points ahead
Where Claude Haiku 4.5 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+52.7points ahead
- Follows unfamiliar, precisely checkable instructionsIFBench+2.9points ahead
- Reasons across sets of long documentsAA-LCR+2.6points 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.
CodingClaude Haiku 4.5
- SciCodeClaude Haiku 4.5 by 1.542.240.7+1.5
- Terminal-Bench Hardtie27.326.5tie
ReasoningDoubao Seed Code
- GPQA DiamondDoubao Seed Code by 9.267.276.4+9.2
- Humanity's Last ExamDoubao Seed Code by 3.710.414.1+3.7
- CritPttie00.3tie
FactsEven
- AA-Omniscience · Non-hallucinationClaude Haiku 4.5 by 52.772.720+52.7
- AA-Omniscience · AccuracyDoubao Seed Code by 6.91824.9+6.9
Images and chartsDoubao Seed Code
- MMMU-ProDoubao Seed Code by 9.558.668.1+9.5
Following instructionsClaude Haiku 4.5
- IFBenchClaude Haiku 4.5 by 2.954.351.4+2.9
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.
- AA-OmniscienceClaude Haiku 4.5 by 30.8-4.4-35.2+30.8
- AA Agentic IndexDoubao Seed Code by 26.110.336.4+26.1
- Artificial Analysis Coding IndexClaude Haiku 4.5 by 12.643.931.3+12.6
- τ²-Bench Telecom (AA run)Doubao Seed Code by 3.554.758.2+3.5
- AA Intelligencetie16.916.9tie
Questions people ask
Which is better, Claude Haiku 4.5 or Doubao Seed Code?
Claude Haiku 4.5 and Doubao Seed Code each win three of the seven areas where both have results. Claude Haiku 4.5 wins coding, long documents and following instructions; Doubao Seed Code wins agents, reasoning and images and charts. They are level on facts.
Which is better for coding?
Claude Haiku 4.5. It wins 1 of the 2 coding tests both models report; Doubao Seed Code wins none, and 1 is a tie.
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.