Model comparison
Fable 5.1 vs Sonnet 5
Side by side comparison of Claude Fable 5.1 and Claude Sonnet 5 for Roblox Studio.
| Fable 5.1 | Sonnet 5 | |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Offered on |
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| Tier | top | mid |
| Pricing | Premium pricing. Highest capability tier. | Mid-range pricing. Strong value. |
| Best for | Complex refactors, deep reasoning, large codebases | Everyday project work, balanced performance |
| Strengths |
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| Use cases |
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Which one should you use?
Fable 5.1
Anthropic's frontier model for demanding Luau coding and Studio tool workflows.
Sonnet 5
Anthropic's balanced model for Roblox workflows. Strong reasoning at a lower cost than Opus, suited for script review and mid-size refactors.
Check the Offered on row above for plan availability. When your plan includes both models, you can switch between them at any time by starting a new conversation with the model picker.
Frequently asked questions
Which is better for Roblox: Fable 5.1 or Sonnet 5?
It depends on your needs. Fable 5.1 is best for Complex refactors, deep reasoning, large codebases. Sonnet 5 is best for Everyday project work, balanced performance. Both are available in the AgileBot Studio plugin when included in your plan.
Can I use both Fable 5.1 and Sonnet 5 in the same project?
Yes, if both models are included in your plan. The AgileBot plugin lets you switch models by starting a new conversation, so you can use the model that fits each task.
Which models are included on Free?
Free includes GPT 5.6 Luna. Plus adds Gemini 3.5 Flash Lite and MiniMax M3. Pro adds GPT 5.6 Terra, Gemini 3.6 Flash, and Claude Sonnet 5. Studio Pro includes the full eight-model catalog, including GPT 5.6 Sol and Claude Opus 4.8.