Seed 1.6 Flash Benchmark Scores & Performance

Benchmark analysis of Seed 1.6 Flash by ByteDance across 32 sourced tests on BenchLM.

According to BenchLM.ai, Seed 1.6 Flash ranks #69 out of 123 models with an overall score of 56/100. While not a frontier model, it offers specific advantages depending on the use case.

Seed 1.6 Flash is a proprietary model with a 256K token context window. It uses explicit chain-of-thought reasoning, which typically improves performance on math and complex reasoning tasks at the cost of higher latency and token usage.

Seed 1.6 Flash sits inside the Seed 1.6 family alongside Seed 1.6.

Its strongest category is Multimodal & Grounded (#42), while its weakest is Knowledge (#79). This performance profile makes it particularly strong for screenshots, documents, charts, and grounded multimodal workflows.

Creator

ByteDance

Source Type

Proprietary

Reasoning

Reasoning

Context Window

256K

Overall Score

56#69 of 123

Arena Elo

1158

Family & Lineage

Family

Seed 1.6

Flash

Canonical Entry

Seed 1.6

Sibling Models

Knowledge Benchmarks

MMLU
65
GPQA
64
SuperGPQA
62
OpenBookQA
60
MMLU-Pro
65
HLE
3
FrontierScience
57

Coding Benchmarks

HumanEval
59
SWE-bench Verified
24
LiveCodeBench
25
SWE-bench Pro
31

Mathematics Benchmarks

AIME 2023
64
AIME 2024
66
AIME 2025
65
HMMT Feb 2023
60
HMMT Feb 2024
62
HMMT Feb 2025
61
BRUMO 2025
63
MATH-500
72

Reasoning Benchmarks

SimpleQA
61
MuSR
59
BBH
75
LongBench v2
70
MRCRv2
74

Agentic Benchmarks

Terminal-Bench 2.0
52
BrowseComp
62
OSWorld-Verified
52

Multimodal & Grounded Benchmarks

MMMU-Pro
74
OfficeQA Pro
72

Instruction Following Benchmarks

IFEval
81

Multilingual Benchmarks

MGSM
76
MMLU-ProX
71

Frequently Asked Questions

How does Seed 1.6 Flash perform overall in AI benchmarks?

Seed 1.6 Flash ranks #69 out of 123 models with an overall score of 56. It is created by ByteDance and features a 256K context window.

Is Seed 1.6 Flash good for knowledge and understanding?

Seed 1.6 Flash ranks #79 out of 123 models in knowledge and understanding benchmarks with an average score of 47.3. There are stronger options in this category.

Is Seed 1.6 Flash good for coding and programming?

Seed 1.6 Flash ranks #77 out of 123 models in coding and programming benchmarks with an average score of 27.6. There are stronger options in this category.

Is Seed 1.6 Flash good for mathematics?

Seed 1.6 Flash ranks #73 out of 123 models in mathematics benchmarks with an average score of 67.1. There are stronger options in this category.

Is Seed 1.6 Flash good for reasoning and logic?

Seed 1.6 Flash ranks #70 out of 123 models in reasoning and logic benchmarks with an average score of 66.8. There are stronger options in this category.

Is Seed 1.6 Flash good for agentic tool use and computer tasks?

Seed 1.6 Flash ranks #63 out of 123 models in agentic tool use and computer tasks benchmarks with an average score of 54.5. There are stronger options in this category.

Is Seed 1.6 Flash good for multimodal and grounded tasks?

Seed 1.6 Flash ranks #42 out of 123 models in multimodal and grounded tasks benchmarks with an average score of 73.1. There are stronger options in this category.

Is Seed 1.6 Flash good for instruction following?

Seed 1.6 Flash ranks #70 out of 123 models in instruction following benchmarks with an average score of 81. There are stronger options in this category.

Is Seed 1.6 Flash good for multilingual tasks?

Seed 1.6 Flash ranks #70 out of 123 models in multilingual tasks benchmarks with an average score of 72.8. There are stronger options in this category.

Which sibling models are related to Seed 1.6 Flash?

Seed 1.6 Flash belongs to the Seed 1.6 family. Related variants on BenchLM include Seed 1.6.

What is the context window size of Seed 1.6 Flash?

Seed 1.6 Flash has a context window of 256K, which determines how much text it can process in a single interaction.

Last updated: March 12, 2026

Weekly LLM Updates

New model releases, benchmark scores, and leaderboard changes. Every Friday.

Free. Your signup is stored with a derived country code for compliance routing.