Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Model details →SpaceXAI: Grok 4.5 vs Anthropic: Claude Fable Latest
SpaceXAI: Grok 4.5 wins on 2 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 | SpaceXAI: Grok 4.5 | Anthropic: Claude Fable Latest | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 500K | 1M | 🏆 Anthropic: Claude Fable Latest |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $10.00 | 🏆 SpaceXAI: Grok 4.5 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $6.00 | $50.00 | 🏆 SpaceXAI: Grok 4.5 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is SpaceXAI: Grok 4.5 better than Anthropic: Claude Fable Latest?
SpaceXAI: Grok 4.5 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between SpaceXAI: Grok 4.5 and Anthropic: Claude Fable Latest?
Input: $2.00 vs $10.00 per 1M tokens. Output: $6.00 vs $50.00 per 1M tokens.
What context windows do SpaceXAI: Grok 4.5 and Anthropic: Claude Fable Latest support?
SpaceXAI: Grok 4.5 supports up to 500K tokens. Anthropic: Claude Fable Latest supports up to 1M tokens.
Do both SpaceXAI: Grok 4.5 and Anthropic: Claude Fable Latest support tool calling?
SpaceXAI: Grok 4.5: yes. Anthropic: Claude Fable Latest: yes.
Compare SpaceXAI: Grok 4.5 with other models
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