LFM2.5-1.2B-Thinking is a lightweight reasoning-focused model optimized for agentic tasks, data extraction, and RAG—while still running comfortably on edge devices. It supports long context (up to 32K tokens) and is designed to provide high…
Model details →LiquidAI: LFM2.5-1.2B-Thinking (free) vs Qwen: Qwen3 4B (free)
Qwen: Qwen3 4B (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Qwen3-4B is a 4 billion parameter dense language model from the Qwen3 series, designed to support both general-purpose and reasoning-intensive tasks. It introduces a dual-mode architecture—thinking and non-thinking—allowing dynamic switchin…
Model details →Side-by-side comparison
| Capability | LiquidAI: LFM2.5-1.2B-Thinking (free) | Qwen: Qwen3 4B (free) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 33K | 41K | 🏆 Qwen: Qwen3 4B (free) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.00 | $0.00 | Tie |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.00 | $0.00 | Tie |
| Tool / function calling First-class support for emitting structured tool calls. | — | Yes | 🏆 Qwen: Qwen3 4B (free) |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is LiquidAI: LFM2.5-1.2B-Thinking (free) better than Qwen: Qwen3 4B (free)?
Qwen: Qwen3 4B (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between LiquidAI: LFM2.5-1.2B-Thinking (free) and Qwen: Qwen3 4B (free)?
Input: $0.00 vs $0.00 per 1M tokens. Output: $0.00 vs $0.00 per 1M tokens.
What context windows do LiquidAI: LFM2.5-1.2B-Thinking (free) and Qwen: Qwen3 4B (free) support?
LiquidAI: LFM2.5-1.2B-Thinking (free) supports up to 33K tokens. Qwen: Qwen3 4B (free) supports up to 41K tokens.
Do both LiquidAI: LFM2.5-1.2B-Thinking (free) and Qwen: Qwen3 4B (free) support tool calling?
LiquidAI: LFM2.5-1.2B-Thinking (free): not advertised. Qwen: Qwen3 4B (free): yes.