Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Seed 1.6 Flash is clearly ahead on the aggregate, 56 to 49. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Seed 1.6 Flash's sharpest advantage is in agentic, where it averages 54.5 against 44. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 52 to 40.
Seed 1.6 Flash is the reasoning model in the pair, while Claude 3 Haiku is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Seed 1.6 Flash gives you the larger context window at 256K, compared with 200K for Claude 3 Haiku.
Pick Seed 1.6 Flash if you want the stronger benchmark profile. Claude 3 Haiku only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Seed 1.6 Flash
54.5
Claude 3 Haiku
44
Seed 1.6 Flash
27.6
Claude 3 Haiku
19.3
Seed 1.6 Flash
73.1
Claude 3 Haiku
68.7
Seed 1.6 Flash
66.8
Claude 3 Haiku
59.6
Seed 1.6 Flash
47.3
Claude 3 Haiku
42.8
Seed 1.6 Flash
81
Claude 3 Haiku
76
Seed 1.6 Flash
72.8
Claude 3 Haiku
71.1
Seed 1.6 Flash
67.1
Claude 3 Haiku
62.2
Seed 1.6 Flash is ahead overall, 56 to 49. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 52 and 40.
Seed 1.6 Flash has the edge for knowledge tasks in this comparison, averaging 47.3 versus 42.8. Inside this category, MMLU is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for coding in this comparison, averaging 27.6 versus 19.3. Inside this category, SWE-bench Pro is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for math in this comparison, averaging 67.1 versus 62.2. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for reasoning in this comparison, averaging 66.8 versus 59.6. Inside this category, MRCRv2 is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for agentic tasks in this comparison, averaging 54.5 versus 44. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for multimodal and grounded tasks in this comparison, averaging 73.1 versus 68.7. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for instruction following in this comparison, averaging 81 versus 76. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Seed 1.6 Flash has the edge for multilingual tasks in this comparison, averaging 72.8 versus 71.1. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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