Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Seed 1.6 Flash has the cleaner overall profile here, landing at 56 versus 53. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
Seed 1.6 Flash's sharpest advantage is in agentic, where it averages 54.5 against 49.2. The single biggest benchmark swing on the page is OSWorld-Verified, 52 to 44.
Gemini 3.1 Flash-Lite is also the more expensive model on tokens at $0.10 input / $0.40 output per 1M tokens, versus $0.08 input / $0.30 output per 1M tokens for Seed 1.6 Flash. Seed 1.6 Flash is the reasoning model in the pair, while Gemini 3.1 Flash-Lite 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. Gemini 3.1 Flash-Lite gives you the larger context window at 1M, compared with 256K for Seed 1.6 Flash.
Pick Seed 1.6 Flash if you want the stronger benchmark profile. Gemini 3.1 Flash-Lite only becomes the better choice if you need the larger 1M context window or you would rather avoid the extra latency and token burn of a reasoning model.
Seed 1.6 Flash
54.5
Gemini 3.1 Flash-Lite
49.2
Seed 1.6 Flash
27.6
Gemini 3.1 Flash-Lite
24.7
Seed 1.6 Flash
73.1
Gemini 3.1 Flash-Lite
73.1
Seed 1.6 Flash
66.8
Gemini 3.1 Flash-Lite
65.8
Seed 1.6 Flash
47.3
Gemini 3.1 Flash-Lite
45.3
Seed 1.6 Flash
81
Gemini 3.1 Flash-Lite
79
Seed 1.6 Flash
72.8
Gemini 3.1 Flash-Lite
69.8
Seed 1.6 Flash
67.1
Gemini 3.1 Flash-Lite
66.1
Seed 1.6 Flash is ahead overall, 56 to 53. The biggest single separator in this matchup is OSWorld-Verified, where the scores are 52 and 44.
Seed 1.6 Flash has the edge for knowledge tasks in this comparison, averaging 47.3 versus 45.3. 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 24.7. Inside this category, HumanEval 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 66.1. 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 65.8. Inside this category, SimpleQA 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 49.2. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.
Seed 1.6 Flash and Gemini 3.1 Flash-Lite are effectively tied for multimodal and grounded tasks here, both landing at 73.1 on average.
Seed 1.6 Flash has the edge for instruction following in this comparison, averaging 81 versus 79. 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 69.8. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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