Claude Fable 5.1 vs Granite 3.3 8B Instruct
Claude Fable 5.1 leads the LLM Stats Score 57.0 to 2.6. Granite 3.3 8B Instruct is 40.0x cheaper per token.
Anthropic · IBM · Updated for 2026
Which is better?
Claude Fable 5.1 leads the overall LLM Stats Score 57.0 to 2.6, ranking #1 overall.
On price, Granite 3.3 8B Instruct is roughly 40.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Claude Fable 5.1 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Fable 5.1
- overall performance matters — it scores 57.0 and ranks #1 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Sep 2026
Choose Granite 3.3 8B Instruct
- cost matters — it's about 40.0x cheaper per token
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
7 reported for Claude Fable 5.1 · 14 for Granite 3.3 8B Instruct
Claude Fable 5.1 and Granite 3.3 8B Instructdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Fable 5.1 ($10.00/1M tokens) is 20.0x more expensive than Granite 3.3 8B Instruct ($0.50/1M tokens).
For output processing, Claude Fable 5.1 ($50.00/1M tokens) is 100.0x more expensive than Granite 3.3 8B Instruct ($0.50/1M tokens).
In conclusion, Claude Fable 5.1 is more expensive than Granite 3.3 8B Instruct.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Claude Fable 5.1 accepts 1,000,000 input tokens compared to Granite 3.3 8B Instruct's 128,000 tokens. Claude Fable 5.1 can generate longer responses up to 128,000 tokens, while Granite 3.3 8B Instruct is limited to 8,192 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude Fable 5.1 and Granite 3.3 8B Instruct support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Fable 5.1
Granite 3.3 8B Instruct
License
Usage and distribution terms
Claude Fable 5.1 is licensed under a proprietary license, while Granite 3.3 8B Instruct 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 5.1 was released on 2026-09-01, while Granite 3.3 8B Instruct was released on 2025-04-16.
Claude Fable 5.1 is 17 months newer than Granite 3.3 8B Instruct.
Sep 1, 2026
1 days ago
1.4yr newerApr 16, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
Granite 3.3 8B Instruct has a documented knowledge cutoff of 2024-04-01, while Claude Fable 5.1's cutoff date is not specified.
We can confirm Granite 3.3 8B Instruct's training data extends to 2024-04-01, but cannot make a direct comparison without Claude Fable 5.1's cutoff date.
—
Apr 2024
Provider Availability
Claude Fable 5.1 is available from Anthropic. Granite 3.3 8B Instruct is available from Replicate.
Claude Fable 5.1
Granite 3.3 8B Instruct
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Fable 5.1 and Granite 3.3 8B Instruct side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Fable 5.1 vs Granite 3.3 8B Instruct.