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LG

LG EXAONE 4.5

LG EXAONE 4.5 is a LG model with 262K context, Not verified in / Not verified out per million tokens, last verified October 25, 2026. Open weights: yes. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.

EXAONE 4.5 is LG's open-weight 33B vision-language model with an exact 262,144-token native context, released April 9 for use within its non-commercial licence.

Recorded profile verification October 25, 2026Individual provider fields may change

AI model specification details
SpecificationLG EXAONE 4.5
ProviderLG
TierBalanced
Context window262K
Max outputNot verifiedUnverified
Input / 1M tokensNot verifiedUnverified
Output / 1M tokensNot verifiedUnverified
WeightsOpen
Parameters31.7B language + 1.29B vision parameters (approximately 33B dense)
Reasoning levelsNot verifiedUnverified
Modalitiestext, image
LicenseEXAONE AI Model License Agreement 1.2 - NC
ReleasedApril 9, 2026

Pricing tiers: Downloadable weights under EXAONE AI Model License Agreement 1.2-NC. Research/education and other allowed non-commercial uses are subject to the exact terms; self-hosting incurs compute costs. No first-party hosted API ID or tariff is established by the checked card and release.

Best for

  • Open-weight deployments
  • Research/edu
  • Long-context

Watch out

The exact EXAONE 1.2-NC agreement restricts commercial use of the model, derivatives and output, and prohibits using them to develop or improve competing models; separate written/commercial permission is required outside its scope. enable_thinking defaults true and can be set false; no named effort menu or hard maximum output is established. The 32,768-token example is not a ceiling. K-EXAONE 2.0 is a separate text MoE; do not inherit its Apache licence or BF16 benchmarks.

Source receipts

Catalog figures for this model were checked against the following sources.

Common questions

LG EXAONE 4.5

Answered from the verified figures on this page rather than general guidance.

What is LG EXAONE 4.5's context window?
LG EXAONE 4.5 accepts about 262K tokens of context. That only matters if you routinely send very long documents, large codebases, or multi-turn histories that approach that limit.
What is LG EXAONE 4.5 best for?
LG EXAONE 4.5 is a balanced tier from LG. It suits open-weight deployments, research/edu, long-context. The exact EXAONE 1.2-NC agreement restricts commercial use of the model, derivatives and output, and prohibits using them to develop or improve competing models; separate written/commercial permission is required outside its scope. enable_thinking defaults true and can be set false; no named effort menu or hard maximum output is established. The 32,768-token example is not a ceiling. K-EXAONE 2.0 is a separate text MoE; do not inherit its Apache licence or BF16 benchmarks.
Can I self-host LG EXAONE 4.5?
LG EXAONE 4.5 publishes open weights, but self-hosting depends on the licence, hardware footprint, quantisation quality, and serving stack. A hosted API is often cheaper until you have measured throughput and concurrency on your own hardware.
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