Claude Fable 5.2 vs LFM3-1.7B: Benchmarks, Pricing & Capabilities Compared
TL;DR — Claude Fable 5.2 wins for long-context · LFM3-1.7B wins for cost.
Claude Fable 5.2 Anthropic
- Released
- 2026-11-09
- Context window
- 1M tokens
- Input price
- $8.00 / Mtok
- Output price
- $40.00 / Mtok
LFM3-1.7B LiquidAI
- Released
- 2026-11-06
- Context window
- 256K tokens
- Input price
- $0.08 / Mtok
- Output price
- $0.20 / Mtok
Benchmark comparison
No benchmarks reported on both models.
Pricing comparison
| Metric | Claude Fable 5.2 | LFM3-1.7B |
|---|---|---|
| Input ($/Mtok) | $8.00 | $0.08 |
| Output ($/Mtok) | $40.00 | $0.20 |
| Cached input ($/Mtok) | — | — |
| Cost per 1M-token roundtrip (1M in + 1M out) | $48.00 | $0.28 |
Context window & modalities
| Attribute | Claude Fable 5.2 | LFM3-1.7B |
|---|---|---|
| Context window | 1M tokens | 256K tokens |
| Input modalities | text, image, file | text |
| Output modalities | text | text |
| Knowledge cutoff | — | — |
Verdict by use case
Coding
Insufficient data
Basis: SWE-bench
No shared coding benchmark.
Reasoning
Insufficient data
Basis: GPQA / MMLU
No shared reasoning benchmark.
Math
Insufficient data
Basis: MATH / AIME
No shared math benchmark.
Long context
→ Claude Fable 5.2
Basis: Context window
Claude Fable 5.2 1M tokens vs LFM3-1.7B 256K tokens.
Cost
→ LFM3-1.7B
Basis: Input $/Mtok
Claude Fable 5.2 $8/Mtok vs LFM3-1.7B $0.08/Mtok input.
Changelog & releases
Claude Fable 5.2
Released 2026-11-09
LFM3-1.7B
Released 2026-11-06