LA
LG AI Research
Language model · South Korea ·Jul 2025

EXAONE 4.0 (1.2B)

Language Open Weights
1.2B
Parameters
13
Benchmarks

About EXAONE 4.0 (1.2B)

EXAONE 4.0 (1.2B) is an AI model developed by LG AI Research, in the language category, released in 2025, made available as an open-weights model with 1.2B params.

On this page you'll find EXAONE 4.0 (1.2B)'s full specifications, including 13 benchmark results. Review provider pricing and benchmark scores below, or compare EXAONE 4.0 (1.2B) head-to-head with other language models.

Links

Run EXAONE 4.0 (1.2B) locally — what to buy

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Sized to what EXAONE 4.0 (1.2B) actually needs (~8k context at Q4), not to the biggest GPU: Good = cheapest that runs it, Better = best value, Best = most headroom. Speed is a hardware estimate; anything past ~120 tok/s is shown as instant.

Software support

✓ measured · · compatible · — not supported. Informational only — speed is hardware-based.

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EXAONE 4.0 (1.2B) benchmark scores
Benchmark Category Score Variant
TAU-bench Airline agentic 20.5% reasoning
TAU-bench Retail agentic 28.1% reasoning
LiveCodeBench v5 code 44.6% reasoning
LiveCodeBench v6 code 45.3% reasoning
IFEval general 67.8% reasoning
MMLU-Pro general 59.3% reasoning
MMLU-Redux general 71.5% reasoning
Multi-IF (EN) general 53.9% reasoning
AIME 2025 math 45.2% reasoning
HMMT February 2025 math 34% reasoning
MATH-500 math 88.8% reasoning, ES
GPQA Diamond reasoning 52% reasoning
BFCL v3 tool-use 52.9% reasoning

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Frequently asked questions

What is EXAONE 4.0 (1.2B)?

EXAONE 4.0 (1.2B) is an AI model developed by LG AI Research, in the language category, released in 2025. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created EXAONE 4.0 (1.2B)?

EXAONE 4.0 (1.2B) was developed by LG AI Research and released in 2025.

Is EXAONE 4.0 (1.2B) open source or proprietary?

EXAONE 4.0 (1.2B) ships as an open-weights model: you can download and self-host the weights, though the licence may place some restrictions on use.

How much does EXAONE 4.0 (1.2B) cost?

Pricing for EXAONE 4.0 (1.2B) depends on the provider. See the providers table on this page for the latest API rates.

How does EXAONE 4.0 (1.2B) perform on benchmarks?

EXAONE 4.0 (1.2B) is benchmarked across 13 evaluations on GenAIList, including TAU-bench Airline (20.5%). See the full benchmark table below and compare it with other models.

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