Claude 3 Haiku vs Grok 3 Mini

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

Claude 3 Haiku is clearly ahead on the aggregate, 42 to 23. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude 3 Haiku's sharpest advantage is in coding, where it averages 75.9 against 41.5. The single biggest benchmark swing on the page is AIME 2024, 0.8% to 39.7%. Grok 3 Mini does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.

Claude 3 Haiku gives you the larger context window at 200K, compared with 128K for Grok 3 Mini.

Quick Verdict

Pick Claude 3 Haiku if you want the stronger benchmark profile. Grok 3 Mini only becomes the better choice if knowledge is the priority.

Agentic

Coming soon

Benchmark data for this category is coming soon.

Coding

Claude 3 Haiku

Claude 3 Haiku

75.9

Grok 3 Mini

41.5

75.9%
HumanEval
Coming soon
Coming soon
LiveCodeBench
41.5%

Multimodal & Grounded

Coming soon

Benchmark data for this category is coming soon.

Reasoning

Claude 3 Haiku

Claude 3 Haiku

52.9

Grok 3 Mini

21.7

54%
SimpleQA
21.7%
52%
MuSR
Coming soon

Knowledge

Grok 3 Mini

Claude 3 Haiku

46.1

Grok 3 Mini

74.1

74%
MMLU
Coming soon
33.3%
GPQA
66.2%
54%
SuperGPQA
Coming soon
52%
OpenBookQA
Coming soon
49%
MMLU-Pro
78.9%

Instruction Following

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

77.2%
IFEval
Coming soon

Multilingual

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

79.7%
MGSM
Coming soon

Mathematics

Claude 3 Haiku

Claude 3 Haiku

55

Grok 3 Mini

39.7

56%
AIME 2023
Coming soon
0.8%
AIME 2024
39.7%
57%
AIME 2025
Coming soon
52%
HMMT Feb 2023
Coming soon
54%
HMMT Feb 2024
Coming soon
53%
HMMT Feb 2025
Coming soon
55%
BRUMO 2025
Coming soon

Frequently Asked Questions

Which is better, Claude 3 Haiku or Grok 3 Mini?

Claude 3 Haiku is ahead overall, 42 to 23. The biggest single separator in this matchup is AIME 2024, where the scores are 0.8% and 39.7%.

Which is better for knowledge tasks, Claude 3 Haiku or Grok 3 Mini?

Grok 3 Mini has the edge for knowledge tasks in this comparison, averaging 74.1 versus 46.1. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, Claude 3 Haiku or Grok 3 Mini?

Claude 3 Haiku has the edge for coding in this comparison, averaging 75.9 versus 41.5. Grok 3 Mini stays close enough that the answer can still flip depending on your workload.

Which is better for math, Claude 3 Haiku or Grok 3 Mini?

Claude 3 Haiku has the edge for math in this comparison, averaging 55 versus 39.7. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Claude 3 Haiku or Grok 3 Mini?

Claude 3 Haiku has the edge for reasoning in this comparison, averaging 52.9 versus 21.7. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Last updated: March 17, 2026

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