Granite 4.1 8B is a dense, decoder-only 8-billion-parameter language model from IBM, part of the Granite 4.1 family. It supports a 131K-token context window and is designed for enterprise tasks...
Model details →IBM: Granite 4.1 8B vs Anthropic: Claude Fable Latest
Anthropic: Claude Fable Latest wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
This model always redirects to the latest model in the Claude Fable family.
Model details →Side-by-side comparison
| Capability | IBM: Granite 4.1 8B | Anthropic: Claude Fable Latest | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 131K | 1M | 🏆 Anthropic: Claude Fable Latest |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.05 | $10.00 | 🏆 IBM: Granite 4.1 8B |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.10 | $50.00 | 🏆 IBM: Granite 4.1 8B |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 Anthropic: Claude Fable Latest |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 Anthropic: Claude Fable Latest |
Frequently asked questions
Is IBM: Granite 4.1 8B better than Anthropic: Claude Fable Latest?
Anthropic: Claude Fable Latest wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between IBM: Granite 4.1 8B and Anthropic: Claude Fable Latest?
Input: $0.05 vs $10.00 per 1M tokens. Output: $0.10 vs $50.00 per 1M tokens.
What context windows do IBM: Granite 4.1 8B and Anthropic: Claude Fable Latest support?
IBM: Granite 4.1 8B supports up to 131K tokens. Anthropic: Claude Fable Latest supports up to 1M tokens.
Do both IBM: Granite 4.1 8B and Anthropic: Claude Fable Latest support tool calling?
IBM: Granite 4.1 8B: yes. Anthropic: Claude Fable Latest: yes.
Compare IBM: Granite 4.1 8B with other models
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