Anthropic: Claude Haiku 4.5 vs xAI: Grok 4.20
Side-by-side comparison of Anthropic: Claude Haiku 4.5 and xAI: Grok 4.20. Compare pricing, context window, capabilities, and find out which is better for your workflow.
Verdict
strong confidenceAnthropic: Claude Haiku 4.5 leads overall
Anthropic: Claude Haiku 4.5 leads in price and max output, making it the stronger choice for most workflows. xAI: Grok 4.20 remains competitive with advantages in context window.
Best for with Anthropic: Claude Haiku 4.5
Best for with xAI: Grok 4.20
Side-by-side
Technical specifications
| Anthropic: Claude Haiku 4.5 | xAI: Grok 4.20 | |
|---|---|---|
| Provider | Anthropic | xAI |
| Input price | $1/M | $2/M |
| Output price | $5/M | $6/M |
| Context window | 200K | 2.0M |
| Max output | 64K | N/A |
| Capabilities | Tool useVisionReasoning | Tool useVisionReasoning |
| Released | Oct 15, 2025 | Mar 31, 2026 |
Scoring breakdown
How each dimension compares
Price
Anthropic: Claude Haiku 4.5 leadsAnthropic: Claude Haiku 4.5
$5/M tokens
xAI: Grok 4.20
$6/M tokens
Context Window
xAI: Grok 4.20 leadsAnthropic: Claude Haiku 4.5
200K tokens
xAI: Grok 4.20
2.0M tokens
Capabilities
Anthropic: Claude Haiku 4.5
3/4
xAI: Grok 4.20
3/4
Max Output
Anthropic: Claude Haiku 4.5 leadsAnthropic: Claude Haiku 4.5
64K tokens
xAI: Grok 4.20
N/A
Recency
Anthropic: Claude Haiku 4.5
Oct 2025
xAI: Grok 4.20
Mar 2026
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