Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Claude Haiku 4.5 is clearly ahead on the aggregate, 62 to 53. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Haiku 4.5's sharpest advantage is in coding, where it averages 41.7 against 24.7. The single biggest benchmark swing on the page is SWE-bench Verified, 48 to 22.
Claude Haiku 4.5 is also the more expensive model on tokens at $0.80 input / $4.00 output per 1M tokens, versus $0.10 input / $0.40 output per 1M tokens for Seed-2.0-Mini. That is roughly 10.0x on output cost alone. Seed-2.0-Mini gives you the larger context window at 256K, compared with 200K for Claude Haiku 4.5.
Pick Claude Haiku 4.5 if you want the stronger benchmark profile. Seed-2.0-Mini only becomes the better choice if you want the cheaper token bill or you need the larger 256K context window.
Claude Haiku 4.5
56.7
Seed-2.0-Mini
46.2
Claude Haiku 4.5
41.7
Seed-2.0-Mini
24.7
Claude Haiku 4.5
78.4
Seed-2.0-Mini
73.1
Claude Haiku 4.5
68.9
Seed-2.0-Mini
64.8
Claude Haiku 4.5
53.6
Seed-2.0-Mini
44.6
Claude Haiku 4.5
86
Seed-2.0-Mini
80
Claude Haiku 4.5
80.1
Seed-2.0-Mini
71.8
Claude Haiku 4.5
73.3
Seed-2.0-Mini
65.1
Claude Haiku 4.5 is ahead overall, 62 to 53. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 48 and 22.
Claude Haiku 4.5 has the edge for knowledge tasks in this comparison, averaging 53.6 versus 44.6. Inside this category, MMLU-Pro is the benchmark that creates the most daylight between them.
Claude Haiku 4.5 has the edge for coding in this comparison, averaging 41.7 versus 24.7. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Claude Haiku 4.5 has the edge for math in this comparison, averaging 73.3 versus 65.1. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.
Claude Haiku 4.5 has the edge for reasoning in this comparison, averaging 68.9 versus 64.8. Inside this category, BBH is the benchmark that creates the most daylight between them.
Claude Haiku 4.5 has the edge for agentic tasks in this comparison, averaging 56.7 versus 46.2. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.
Claude Haiku 4.5 has the edge for multimodal and grounded tasks in this comparison, averaging 78.4 versus 73.1. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Claude Haiku 4.5 has the edge for instruction following in this comparison, averaging 86 versus 80. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Claude Haiku 4.5 has the edge for multilingual tasks in this comparison, averaging 80.1 versus 71.8. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.
Get notified when new models drop, benchmark scores change, or the leaderboard shifts. One email per week.
Free. No spam. Unsubscribe anytime. We only store derived location metadata for consent routing.