Exaone 4.0 32B vs GPT-5.3 Codex

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

Exaone 4.0 32B has the cleaner overall profile here, landing at 83 versus 80. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

GPT-5.3 Codex gives you the larger context window at 400K, compared with 128K for Exaone 4.0 32B.

Quick Verdict

Pick Exaone 4.0 32B if you want the stronger benchmark profile. GPT-5.3 Codex only becomes the better choice if mathematics is the priority or you need the larger 400K context window.

Agentic

Coming soon

Benchmark data for this category is coming soon.

Coding

Coming soon

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

Coming soon
HumanEval
95%
Coming soon
SWE-bench Verified
85%
Coming soon
SWE-Rebench
58.2%

Multimodal & Grounded

Coming soon

Benchmark data for this category is coming soon.

Reasoning

Coming soon

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

Coming soon
MuSR
93%

Knowledge

GPT-5.3 Codex

Exaone 4.0 32B

81.8

GPT-5.3 Codex

93.5

81.8%
MMLU-Pro
90%
Coming soon
MMLU
99%
Coming soon
GPQA
97%
Coming soon
SuperGPQA
95%
Coming soon
SimpleQA
95%

Instruction Following

Coming soon

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

Coming soon
IFEval
93%

Multilingual

Coming soon

Benchmark data for this category is coming soon.

Mathematics

GPT-5.3 Codex

Exaone 4.0 32B

85.3

GPT-5.3 Codex

97.6

85.3%
AIME 2025
98%
Coming soon
AIME 2023
99%
Coming soon
AIME 2024
99%
Coming soon
HMMT Feb 2023
95%
Coming soon
HMMT Feb 2024
97%
Coming soon
HMMT Feb 2025
96%
Coming soon
BRUMO 2025
96%
Coming soon
MATH-500
99%

Frequently Asked Questions

Which is better, Exaone 4.0 32B or GPT-5.3 Codex?

Exaone 4.0 32B is ahead overall, 83 to 80. The biggest single separator in this matchup is AIME 2025, where the scores are 85.3% and 98%.

Which is better for knowledge tasks, Exaone 4.0 32B or GPT-5.3 Codex?

GPT-5.3 Codex has the edge for knowledge tasks in this comparison, averaging 93.5 versus 81.8. Inside this category, MMLU-Pro is the benchmark that creates the most daylight between them.

Which is better for math, Exaone 4.0 32B or GPT-5.3 Codex?

GPT-5.3 Codex has the edge for math in this comparison, averaging 97.6 versus 85.3. Inside this category, AIME 2025 is the benchmark that creates the most daylight between them.

Last updated: March 18, 2026

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