SpaceXAI: Grok 4.6 vs xAI: Grok Latest
Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-27.
| SpaceXAI: Grok 4.6 | xAI: Grok Latest | |
|---|---|---|
| Vendor | x-ai | ~x-ai |
| Quality Score | 100 | 100 |
| Benchmark Score | 75.3 | 5.8 |
| Input Price | $2.00/M | $1.60/M |
| Output Price | $6.00/M | $4.80/M |
| Context Window | 500,000 | 500,000 |
| Max Output | 450,000 | 450,000 |
| Tool Calling | ✓ | ✓ |
| Structured Output | ✓ | ✓ |
| Reasoning Mode | ✓ | ✓ |
| Vision | ✓ | ✓ |
| Audio | - | - |
| Benchmark Scores | ||
| ai_index | 73.1 | 11.4 |
The verdict
For a sample job of 1 million input tokens and 250,000 output tokens, Grok Latest costs $2.80 and Grok 4.6 costs $3.50, so Grok Latest is about 1.2 times cheaper for the same work.
Both read up to 500,000 tokens at once, roughly 750 pages of text.
On our blended benchmark score Grok 4.6 leads 75.3 to 5.8.
Across the 20 tasks where they differ, Grok 4.6 scores higher on 18 (SQL Generation, Code Review, Code Completion and others), Grok Latest on 2 (JSON Extraction, Bulk Data Labeling).
Grok 4.6 was released in August 2026 and Grok Latest in July 2026.
Pick Grok 4.6 if you need benchmark performance or the stronger all-round task scores; pick Grok Latest if you need lower cost.
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 | SpaceXAI: Grok 4.6 | xAI: Grok Latest |
|---|---|---|
| SQL Generation | 142 | 134 |
| Code Review | 145 | 134 |
| Code Completion | 119 | 118 |
| Code Refactoring | 147 | 137 |
| Bug Fixing | 149 | 138 |
| Unit Test Generation | 132 | 125 |
| Code Documentation | 137 | 131 |
| Regex Writing | 125 | 119 |
| CI/CD Pipelines | 128 | 121 |
| Frontend Component Design | 130 | 123 |
| Data Analysis | 135 | 125 |
| CSV / Spreadsheet Cleanup | 136 | 133 |
| ETL Scripting | 138 | 129 |
| JSON Extraction | 122 | 122 |
| Bulk Data Labeling | 119 | 120 |
| OCR / Document Parsing | 134 | 131 |
| Table Extraction from PDFs | 134 | 131 |
| Long-Document Summarization | 148 | 139 |
| Short-Form Summarization | 118 | 115 |
| Blog Post Writing | 130 | 122 |
Scores reflect capability match + benchmark data + pricing for each task. Methodology →