Exaone 4.0 1.2B vs GPT-5.4 nano

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

Benchmark data for one or both models is coming soon. This page currently shows metadata and pricing where BenchLM has it, and score-level comparisons will populate as public benchmark results land.

BenchLM does not have sourced benchmark coverage for Exaone 4.0 1.2B yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.

GPT-5.4 nano has the larger context window at 400K, compared with 128K for Exaone 4.0 1.2B.

Quick Verdict

Benchmark data for Exaone 4.0 1.2B and GPT-5.4 nano is coming soon on BenchLM.

Agentic

Coming soon

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

Coming soon
Terminal-Bench 2.0
46.3%
Coming soon
OSWorld-Verified
39%
Coming soon
MCP Atlas
56.1%
Coming soon
Toolathlon
35.5%
Coming soon
tau2-bench
92.5%

Coding

Coming soon

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

Coming soon
SWE-bench Pro
52.4%

Multimodal & Grounded

Coming soon

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

Coming soon
MMMU-Pro
66.1%
Coming soon
MMMU-Pro w/ Python
69.5%
Coming soon
OmniDocBench 1.5
0.2419

Reasoning

Coming soon

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

Coming soon
MRCRv2
38.7%
Coming soon
MRCR v2 64K-128K
44.2%
Coming soon
MRCR v2 128K-256K
33.1%
Coming soon
Graphwalks BFS 128K
73.4%
Coming soon
Graphwalks Parents 128K
50.8%

Knowledge

Coming soon

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

Coming soon
GPQA
82.8%
Coming soon
HLE
37.7%
Coming soon
HLE w/o tools
24.3%

Instruction Following

Coming soon

Benchmark data for this category is coming soon.

Multilingual

Coming soon

Benchmark data for this category is coming soon.

Mathematics

Coming soon

Benchmark data for this category is coming soon.

Frequently Asked Questions

Can I compare Exaone 4.0 1.2B and GPT-5.4 nano on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.

Why does this comparison show “coming soon”?

BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.

What data is available for Exaone 4.0 1.2B and GPT-5.4 nano today?

GPT-5.4 nano: $0.20 input / $1.25 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.

Last updated: March 18, 2026

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