Claude Haiku 4.5 vs Grok 4.20
Compare Anthropic and xAI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Claude Haiku 4.5
Grok 4.20
Cost Differences
Grok 4.20 costs more than Claude Haiku 4.5
Feature Comparison
| Feature | Claude Haiku 4.5 | Grok 4.20 |
|---|---|---|
| Provider | Anthropic | xAI |
| Input Price | $1.00/1M tokens | $2.00/1M tokens |
| Output Price | $5.00/1M tokens | $6.00/1M tokens |
| Context Window | 200,000 tokens | 2,000,000 tokens |
| Max Output | 64,000 tokens | 131,072 tokens |
| Category | efficient | reasoning |
| Capabilities | textvision | textvisionreasoningcode |
| Release Date | 10/15/2025 | 2/17/2026 |
Claude Haiku 4.5 vs Grok 4.20: Which Should You Choose?
Choosing between Claude Haiku 4.5 and Grok 4.20 depends on your priorities: cost efficiency, context length, or raw capability. Claude Haiku 4.5 is the more affordable option at $1.00/1M input tokens — 50% cheaper than Grok 4.20. Meanwhile, Grok 4.20 offers a significantly larger context window at 2,000,000 tokens vs 200,000 for Claude Haiku 4.5.
These models come from different providers — Anthropic and xAI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Anthropic, switching to xAIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
These models target different tiers: Claude Haiku 4.5 is a efficient model while Grok 4.20 is reasoning. This means they're optimized for different workloads. Grok 4.20 targets more demanding workloads, while Claude Haiku 4.5 provides a cost-effective option for everyday tasks.
Output costs matter too. Claude Haiku 4.5 charges $5.00/1M output tokens vs $6.00 for Grok 4.20. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Claude Haiku 4.5 has the edge here at $5.00/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Claude Haiku 4.5 when:
- • Budget is a primary concern
- • You're already using Anthropic's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose Grok 4.20 when:
- • You need a larger context window (2,000,000 tokens)
- • You need more capabilities (reasoning, code)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using xAI's API ecosystem
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Claude Haiku 4.5 (Anthropic)
Grok 4.20 (xAI)
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