Anthropic: Claude Haiku 5.5 vs SpaceXAI: Grok 4.7
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-08.
| Anthropic: Claude Haiku 5.5 | SpaceXAI: Grok 4.7 | |
|---|---|---|
| Vendor | anthropic | x-ai |
| Quality Score | 100 | 100 |
| Benchmark Score | 73.6 | 79.2 |
| Input Price | $0.10/M | $2.00/M |
| Output Price | $0.50/M | $6.00/M |
| Context Window | 1,000,000 | 500,000 |
| Max Output | 128,000 | 450,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 71.6 | 76.6 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Claude Haiku 5.5 costs $0.23 and Grok 4.7 costs $3.50, so Claude Haiku 5.5 is about 15.6 times cheaper for the same work.
Claude Haiku 5.5 reads up to 1,000,000 tokens at once, roughly 1,500 pages of text, against about 750 pages for Grok 4.7.
On our blended benchmark score Grok 4.7 leads 79.2 to 73.6.
Across the 20 tasks where they differ, Claude Haiku 5.5 scores higher on 9 (SQL Generation, Code Completion, Code Documentation and others), Grok 4.7 on 11 (Code Review, Code Refactoring, Bug Fixing and others).
Claude Haiku 5.5 was released in October 2026 and Grok 4.7 in September 2026.
Pick Claude Haiku 5.5 if you need lower cost or long documents; pick Grok 4.7 if you need benchmark performance.
Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.
Who wins by task?
| Task | Anthropic: Claude Haiku 5.5 | SpaceXAI: Grok 4.7 |
|---|---|---|
| SQL Generation | 142 | 142 |
| Code Review | 145 | 146 |
| Code Completion | 133 | 119 |
| Code Refactoring | 147 | 148 |
| Bug Fixing | 149 | 150 |
| Unit Test Generation | 132 | 133 |
| Code Documentation | 138 | 137 |
| Regex Writing | 127 | 126 |
| CI/CD Pipelines | 128 | 129 |
| Frontend Component Design | 130 | 131 |
| Data Analysis | 134 | 135 |
| CSV / Spreadsheet Cleanup | 136 | 136 |
| ETL Scripting | 138 | 138 |
| JSON Extraction | 131 | 122 |
| Bulk Data Labeling | 129 | 119 |
| OCR / Document Parsing | 134 | 134 |
| Table Extraction from PDFs | 134 | 134 |
| Long-Document Summarization | 149 | 149 |
| Short-Form Summarization | 127 | 118 |
| Blog Post Writing | 130 | 130 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →