Claude Fable 5 vs IBM Granite 4.2 30B
Claude Fable 5 leads the LLM Stats Score 55.3 to 24.0.
Anthropic · IBM · Updated for 2026
Which is better?
Claude Fable 5 leads the overall LLM Stats Score 55.3 to 24.0, ranking #4 overall.
In the 3 individual benchmarks reported for both models, Claude Fable 5 wins 3; 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 Fable 5
- overall performance matters — it scores 55.3 and ranks #4 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 3 of 3 exact shared results
Choose IBM Granite 4.2 30B
- you want the most recent training data — it shipped Aug 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
18 reported for Claude Fable 5 · 18 for IBM Granite 4.2 30B
Claude Fable 5 outperforms in 3 benchmarks (SWE-Bench Pro, SWE-Bench Verified, Terminal-Bench 2.1), while IBM Granite 4.2 30B is better at 0 benchmarks.
Claude Fable 5 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 Fable 5 specifies input context (1,000,000 tokens). Only Claude Fable 5 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Claude Fable 5 supports multimodal inputs, whereas IBM Granite 4.2 30B does not.
Claude Fable 5 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude Fable 5
IBM Granite 4.2 30B
License
Usage and distribution terms
Claude Fable 5 is licensed under a proprietary license, while IBM Granite 4.2 30B uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Claude Fable 5 was released on 2026-06-09, while IBM Granite 4.2 30B was released on 2026-08-25.
IBM Granite 4.2 30B is 3 months newer than Claude Fable 5.
Jun 9, 2026
2 months ago
Aug 25, 2026
6 days ago
2mo 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 Fable 5 and IBM Granite 4.2 30B side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Fable 5 vs IBM Granite 4.2 30B.