Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Seed 1.6 is clearly ahead on the aggregate, 65 to 51. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Seed 1.6's sharpest advantage is in coding, where it averages 42.4 against 19. The single biggest benchmark swing on the page is SWE-bench Verified, 46 to 10.
Seed 1.6 is the reasoning model in the pair, while Claude 3 Opus 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 gives you the larger context window at 256K, compared with 200K for Claude 3 Opus.
Pick Seed 1.6 if you want the stronger benchmark profile. Claude 3 Opus only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Seed 1.6
62.3
Claude 3 Opus
48.1
Seed 1.6
42.4
Claude 3 Opus
19
Seed 1.6
79.6
Claude 3 Opus
70.3
Seed 1.6
74.5
Claude 3 Opus
61.6
Seed 1.6
56.4
Claude 3 Opus
45
Seed 1.6
87
Claude 3 Opus
77
Seed 1.6
83.4
Claude 3 Opus
69.8
Seed 1.6
75.9
Claude 3 Opus
65.9
Seed 1.6 is ahead overall, 65 to 51. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 46 and 10.
Seed 1.6 has the edge for knowledge tasks in this comparison, averaging 56.4 versus 45. Inside this category, MMLU-Pro is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for coding in this comparison, averaging 42.4 versus 19. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for math in this comparison, averaging 75.9 versus 65.9. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for reasoning in this comparison, averaging 74.5 versus 61.6. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for agentic tasks in this comparison, averaging 62.3 versus 48.1. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for multimodal and grounded tasks in this comparison, averaging 79.6 versus 70.3. Inside this category, OfficeQA Pro is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for instruction following in this comparison, averaging 87 versus 77. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Seed 1.6 has the edge for multilingual tasks in this comparison, averaging 83.4 versus 69.8. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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