Claude Haiku 4.5 vs Grok Build 0.1
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Claude Haiku 4.5 and Grok Build 0.1.
Claude Haiku 4.5
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance...
Grok Build 0.1
Grok Build 0.1 is xAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...
Technical Specifications
| Specification | Claude Haiku 4.5 | Grok Build 0.1 |
|---|---|---|
| Provider | Anthropic | xAI |
| Context Window | 200,000 tokens | 256,000 tokens |
| Agent Suitability | 87/100 | N/A |
| Time to First Token (TTFT) | 180 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-10-15 | 2026-05-20 |
API Pricing Comparison
Input Price per Million Tokens
Claude Haiku 4.5
$1.00
Grok Build 0.1
$1.00
Output Price per Million Tokens
Claude Haiku 4.5
$5.00
Grok Build 0.1
$2.00
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Claude Haiku 4.5 Quirks & Gotchas
- ▸Fastest TTFT in the Claude lineup — ideal for real-time chat
- ▸Tool calling limited compared to Sonnet — best for simple classification and routing
Grok Build 0.1 Quirks & Gotchas
No developer gotchas reported.