Claude 3.5 Sonnet vs LFM3-1.7B
LFM3-1.7B leads the LLM Stats Score 25.0 to 18.4.
Anthropic · Liquid AI · Updated for 2026
Which is better?
LFM3-1.7B leads the overall LLM Stats Score 25.0 to 18.4, ranking #192 overall.
In the 2 individual benchmarks reported for both models, Claude 3.5 Sonnet wins 2; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude 3.5 Sonnet
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
Choose LFM3-1.7B
- overall performance matters — it scores 25.0 and ranks #192 on LLM Stats
- you want the most recent training data — it shipped Oct 2026
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
19 reported for Claude 3.5 Sonnet · 20 for LFM3-1.7B
Claude 3.5 Sonnet outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while LFM3-1.7B is better at 0 benchmarks.
Claude 3.5 Sonnet significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Claude 3.5 Sonnet specifies input context (200,000 tokens). Only Claude 3.5 Sonnet specifies output context (200,000 tokens).
Input capabilities
Documented input modalities across available providers
Claude 3.5 Sonnet supports multimodal inputs, whereas LFM3-1.7B does not.
Claude 3.5 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude 3.5 Sonnet
LFM3-1.7B
License
Usage and distribution terms
Claude 3.5 Sonnet is licensed under a proprietary license, while LFM3-1.7B uses LFM Open License v1.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
LFM Open License v1.0
Open weights
Release Timeline
When each model was launched
Claude 3.5 Sonnet was released on 2024-10-22, while LFM3-1.7B was released on 2026-10-27.
LFM3-1.7B is 25 months newer than Claude 3.5 Sonnet.
Oct 22, 2024
2.0 years ago
Oct 27, 2026
4 days ago
2.0yr newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3.5 Sonnet and LFM3-1.7B side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3.5 Sonnet vs LFM3-1.7B.