LFM2.5-350M ShellAI v2 โ€” two-stage Q8_0

This release translates a natural-language shell request through a validated typed intermediate representation before producing Bash:

  1. LFM2.5-350M-ShellAI-v2-IR-Q8_0.gguf: natural language to ShellIR-v1.
  2. LFM2.5-350M-ShellAI-v2-Command-Q8_0.gguf: ShellIR-v1 to one Bash command.

Both files are required for the learned two-stage pipeline. A deterministic ShellIR compiler can replace the second model when minimum memory or latency is more important than retaining the learned lowering stage. The untouched LiquidAI conversational base remains usable without either task adapter.

These are ordinary post-training Q8_0 GGUF files. They are not Liquid AI QAD checkpoints and are not labeled as QAD.

Evaluation

The sealed suite contains 20 compositional NL-to-Bash cases. No generated command was executed.

Runtime Strict / exact Utility Valid ShellIR Gold-IR compiler
Transformers BF16 adapter 80% 100% 100% 100%
llama.cpp Q8_0, 1 thread 75% 100% 100% 100%
llama.cpp Q8_0, 2 threads 75% 100% 100% 100%

The one Q8_0-only regression was a permission-mask choice in the world-writable-files case. Thread count did not change model output.

CPU threads Median IR latency Median command latency Median total IR decode Command decode
1 2482 ms 698 ms 3525 ms 35.1 tok/s 33.0 tok/s
2 1381 ms 368 ms 1923 ms 58.1 tok/s 65.3 tok/s

Measurements used llama.cpp b10516 with CPU-only inference on the development machine. See hard_suite_two_stage.json and q8_0_two_stage_gguf.json for per-case results.

Training and selection

The Stage-1 release is an exact LoRA-delta blend of 87.5% safety-focused and 12.5% balanced checkpoints. It improved strict suite accuracy from 70% to 80% while retaining 100% risk/effects-label accuracy. Stage 2 was 100% exact when given gold ShellIR.

Treat model output as untrusted. Validate ShellIR, enforce the risk/effects policy, show destructive commands to the user, and never execute a generated command without explicit authorization.

License

This is a modified derivative of LiquidAI/LFM2.5-350M, distributed under the included LFM Open License v1.0. See NOTICE for the modification statement.

Downloads last month
-
GGUF
Model size
0.4B params
Architecture
lfm2
Hardware compatibility
Log In to add your hardware

8-bit

Inference Providers NEW
This model isn't deployed by any Inference Provider. ๐Ÿ™‹ Ask for provider support

Model tree for micrictor/LFM2.5-350M-ShellAI-v2-GGUF

Quantized
(68)
this model