LongCat Flash Lite
Jan 2026
LongCat Flash LiteCompare inon
Benchmarks of LongCat Flash Lite11
BenchmarkByScoreRank
Overall1
Knowledge4
Science2
Coding1
Documents1
Legacy · saturated or no longer reported2
No benchmark matches
—per task?
self-host onlyprice
—output speed?
256Kcontext
Ranking?
Alternatives?
ModelScoreCostPer taskWhat changes
BetterGPT-6 Lunalow+88%—$0.005Function calling only with none · Chat Completions+3
OpenQwen3.8 27Bxhigh×2.9—$1.15max_tokens range · QwenCloud+4BetterGPT-5.6 Lunalow+83%—$0.01
BetterClaude Haiku 5.5low×2.6—$0.024Remove sampling parameters+5
BetterLing 3.0 FlashthinkingOpen+76%—$0.028Memory (4-bit): 41 GB → 76 GBModelScoreCostPer taskWhat changes
Nothing here yet.
ModelScoreCostPer taskWhat changes
GPT-6 Lunalow+88%—$0.005Function calling only with none · Chat Completions+3GPT-5.6 Lunalow+83%—$0.01Claude Haiku 5.5low×2.6—$0.024Remove sampling parameters+5Ling 3.0 FlashthinkingOpen+76%—$0.028Memory (4-bit): 41 GB → 76 GB
MiMo v2.5thinkingOpen+90%—$0.042Memory (4-bit): 41 GB → 186 GBModelScoreCostPer taskWhat changes
Qwen3.8 27BxhighOpen×2.9—$1.15max_tokens range · QwenCloud+4
Nemotron 3.5 Super VLthinkingOpen×2.3—$0.19Memory (4-bit): 41 GB → 75 GBIK2 Horizon MoVA 36B A4BthinkingOpen×2.2—$1 / $4Ling 3.0 Flash VLthinkingOpen×2.1—$0.06 / $0.18Memory (4-bit): 41 GB → 75 GBQwen 3.5 27BthinkingOpen+100%—$0.30 / $2.40Run it yourself
estimateFits on✗ 8 GB (phone, laptop)✗ 16 GB✗ 24 GB GPU✓ 48 GB GPU · compressed✓ 80 GB GPU · 8-bit
LicenceMITfree for commercial use
Benchmarks
all categoriesChat & Knowledge
Humanity's Last Exam5.8#256
AA Omniscience Index-70.1#296
CritPt (physics)0#182
AA Intelligence Index 4.3.2≈11.5#192
AA Omniscience · Accuracy13.3#259
AA-LCR (long context) 1.128.3#224
GPQA Diamond63.6#216
Coding
Agents & Tool Use
τ²-bench · AA79.5#82
Writing & Language
IFBench (instructions)43.1#141
FAQ
How much does LongCat Flash Lite cost?›
There is no per-unit API price: self-host only.
Is LongCat Flash Lite free to use?›
There is no free API. The weights are open, so you can run it yourself.
How good is LongCat Flash Lite, and what is it best at?›
#254 of 336 in Chat & Knowledge, #121 of 239 in Coding, #80 of 242 in Agents & Tool Use, #140 of 245 in Writing & Language.
Is LongCat Flash Lite better than K2 Think V2?›
On AA Intelligence Index 4.3.2, LongCat Flash Lite scores 11.5 vs 11.5 — about the same.
What is the context window of LongCat Flash Lite?›
256K tokens.
When was LongCat Flash Lite released? Is there a newer version?›
Released 2026-01-28. It is the current version in its line.
Is LongCat Flash Lite open source?›
Yes, the weights are open (MIT licence).
Can I run LongCat Flash Lite locally?›
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
Can LongCat Flash Lite read images?›
No, it accepts text only.
What is LongCat Flash Lite?›
LongCat Flash Lite is an open-weights language model from LongCat, released Jan 2026.
What are the best alternatives to LongCat Flash Lite?›
GPT-6 Luna (better), Qwen3.8 27B (open weights).