Qwen3.5 397B vs DBRX Instruct

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Qwen3.5 397B is clearly ahead on the aggregate, 71 to 32. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Qwen3.5 397B gives you the larger context window at 128K, compared with 32K for DBRX Instruct.

Quick Verdict

Pick Qwen3.5 397B if you want the stronger benchmark profile. DBRX Instruct only becomes the better choice if coding is the priority.

Knowledge

DBRX Instruct

Qwen3.5 397B

67.7

DBRX Instruct

73.7

83
MMLU
73.7
82
GPQA
-
80
SuperGPQA
-
78
OpenBookQA
-
73
MMLU-Pro
-
10
HLE
-

Coding

DBRX Instruct

Qwen3.5 397B

52

DBRX Instruct

70.1

75
HumanEval
70.1
42
SWE-bench Verified
-
39
LiveCodeBench
-

Mathematics

Qwen3.5 397B
83
AIME 2023
-
85
AIME 2024
-
84
AIME 2025
-
79
HMMT Feb 2023
-
81
HMMT Feb 2024
-
80
HMMT Feb 2025
-
82
BRUMO 2025
-
81
MATH-500
-

Reasoning

Qwen3.5 397B
80
SimpleQA
-
78
MuSR
-
82
BBH
-

Instruction Following

Qwen3.5 397B
82
IFEval
-

Multilingual

Qwen3.5 397B
82
MGSM
-

Frequently Asked Questions

Which is better, Qwen3.5 397B or DBRX Instruct?

Qwen3.5 397B is ahead overall, 71 to 32. The biggest single separator in this matchup is MMLU, where the scores are 83 and 73.7.

Which is better for knowledge tasks, Qwen3.5 397B or DBRX Instruct?

DBRX Instruct has the edge for knowledge tasks in this comparison, averaging 73.7 versus 67.7. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Qwen3.5 397B or DBRX Instruct?

DBRX Instruct has the edge for coding in this comparison, averaging 70.1 versus 52. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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