LFM2.5 1.2B
LFM2.5 1.2B is Liquid AI's on-device model family built on hybrid LIV convolution and GQA, trained on 28T tokens for edge agentic AI under 1GB memory.
Model Overview
Capabilities, design details, and architectural traits
LFM2.5 1.2B - A Hybrid Architecture Family Built to Power
LFM2.5 1.2B is documented by Liquid AI as a model family built on the LFM2 device-optimized architecture, designed to be the building block of on-device agentic AI. It is not a single model but a full family, including Base, Instruct, Japanese, Vision-Language, and Audio-Language variants built on a shared backbone.
| Trait | Detail |
|---|---|
| Hybrid architecture | Built on a 16-layer hybrid combining 10 double-gated LIV convolution blocks with 6 Grouped Query Attention (GQA) blocks. |
| Scaled pretraining | Extended from 10T to 28T tokens compared to LFM2, combined with multi-stage reinforcement learning focused on instruction following, tool use, math, and knowledge reasoning. |
| Sub-1GB memory footprint | Documented as running under 1GB of memory in quantized form. |
| Complete specialist family | Alongside the general Instruct variant, ships with a Japanese-optimized chat model, a VL model with multilingual vision, and an Audio model documented as 8x faster than its predecessor. |
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
Compare Models Side-by-Side
Evaluate specifications, pricing, and independent benchmark indices
| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | Liquid AI | Anthropic | Anthropic |
| Release Date | January 5, 2026 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | - | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 33K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | Free Best Input Pricing | $4 | $2 |
| Output Pricing | Free Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | text | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 5.2 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | - | - | - |
| Agentic Index | - | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
Explore more from Liquid AI
Other models by Liquid AI
Top AI Models
Leading alternatives by intelligence score
