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meituan-longcat/LongCat-2.5-W4A4

archived · low-signalmodel

LongCat-2.5 is a native multimodal MoE model for long-horizon agentic tasks, with 1.6 trillion total parameters and approximately 48 billion activated per token. Mixture-of-experts, 495B total (768 experts). Context: 512K tokens (config). License: mit.

Org
meituan-longcat
Released
2026-11-04
Status
archived · low-signal
License
mit (permissive)
Parameters
494.8B
Architecture
MoE · 768 experts, None/token · LongcatCausalLM
Context
524,288 tokens (config.json)
Task
image-text-to-text · vision
Signal
3 HF likes · 240 downloads
Archived
2026-11-13 (no longer listed by the collector; stats as last seen)

Runs on

estimate from params; need = weights + FP16 KV cache for 8K tokens + 1GB. A sizing calculation, not tested.

Links

First published here 2026-11-04 · updated 2026-11-13 · markdown · JSON