Author's Description
Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Key Specifications
Supported Parameters
This model supports the following parameters:
Features
This model supports the following features:
Performance Summary
SpaceXAI's Grok 4.6, released on August 12, 2026, demonstrates frontier performance across key intellectual domains, particularly in coding, knowledge work, and STEM. While its speed performance is moderate, ranking in the 36th percentile, its pricing is positioned at a premium level, falling into the 8th percentile. A standout feature is its exceptional reliability, achieving a 100% success rate across all 8 benchmarks, indicating minimal technical failures. Grok 4.6 exhibits perfect accuracy in Hallucinations, General Knowledge, and Ethics, often being the most accurate model at its price point and speed for these categories. It shows strong capabilities in Coding (96.0% accuracy, 94th percentile), Reasoning (98.0% accuracy, 85th percentile), and Mathematics (95.0% accuracy, 82nd percentile), aligning with its description as a smart model for STEM and knowledge work. Its instruction following is solid at 76.0% accuracy, and email classification is highly accurate at 99.0%. The primary weakness appears to be its premium cost across most benchmarks, despite its high accuracy.
Model Pricing
Current Pricing
| Feature | Price (per 1M tokens) |
|---|---|
| Prompt | $2 |
| Completion | $6 |
| Input Cache Read | $0.5 |
| Web Search | $5000 |
Price History
Available Endpoints
| Provider | Endpoint Name | Context Length | Pricing (Input) | Pricing (Output) |
|---|---|---|---|---|
|
xAI
|
xAI | x-ai/grok-4.6-20260810 | 500K | $2 / 1M tokens | $6 / 1M tokens |
|
xAI
|
xAI | x-ai/grok-4.6-20260810 | 500K | $4 / 1M tokens | $12 / 1M tokens |
|
xAI
|
xAI | x-ai/grok-4.6-20260810 | 500K | $2 / 1M tokens | $6 / 1M tokens |
|
xAI
|
xAI | x-ai/grok-4.6-20260810 | 500K | $4 / 1M tokens | $12 / 1M tokens |
Benchmark Results
| Benchmark | Category | Reasoning | Strategy | Free | Executions | Accuracy | Cost | Duration |
|---|
Other Models by x-ai
|
|
Released | Params | Context |
|
Speed | Ability | Cost |
|---|---|---|---|---|---|---|---|
| SpaceXAI: Grok 4.5 | Jul 08, 2026 | — | 500K |
Image input
Text input
File input
Text output
|
★★ | ★★★★★ | $$$$$ |
| SpaceXAI: Grok Build 0.1 | May 20, 2026 | — | 256K |
Image input
Text input
File input
Text output
|
★★ | ★★★★ | $$$$$ |
| xAI: Grok 4.3 Unavailable | Apr 30, 2026 | — | 1M |
Image input
Text input
Text output
|
★★ | ★★★★★ | $$$$$ |
| SpaceXAI: Grok 4.3 | Apr 30, 2026 | — | 1M |
Image input
Text input
File input
Text output
|
★ | ★★★★★ | $$$$$ |
| xAI: Grok 4.20 Multi-Agent Unavailable | Mar 31, 2026 | — | 2M |
Image input
Text input
File input
Text output
|
— | — | $$$$$ |
| SpaceXAI: Grok 4.20 Multi-Agent | Mar 31, 2026 | — | 2M |
Image input
Text input
File input
Text output
|
— | — | $$$$$ |
| xAI: Grok 4.20 Unavailable | Mar 31, 2026 | — | 2M |
Image input
Text input
Text output
|
— | — | $$$$$ |
| SpaceXAI: Grok 4.20 | Mar 31, 2026 | — | 2M |
Image input
Text input
File input
Text output
|
— | — | $$$$$ |
| xAI: Grok 4.20 Multi-Agent Beta Unavailable | Mar 12, 2026 | — | 2M |
Image input
Text input
Text output
|
— | — | $$$$$ |
| xAI: Grok 4.20 Multi-Agent Beta Unavailable | Mar 12, 2026 | — | 2M |
Image input
Text input
File input
Text output
|
★★★ | ★★★★★ | $$$$$ |
| xAI: Grok 4.20 Beta Unavailable | Mar 12, 2026 | — | 2M |
Image input
Text input
Text output
|
— | — | $$$$$ |
| xAI: Grok 4.20 Beta Unavailable | Mar 12, 2026 | — | 2M |
Image input
Text input
Text output
|
★★★★★ | ★★★ | $$$$$ |
| xAI: Grok 4.1 Fast Unavailable | Nov 19, 2025 | — | 2M |
Image input
Text input
File input
Text output
|
★★ | ★★ | $ |
| xAI: Grok 4 Fast Unavailable | Sep 18, 2025 | — | 2M |
Image input
Text input
File input
Text output
|
★★ | ★★★★★ | $$$$ |
| xAI: Grok Code Fast 1 Unavailable | Aug 26, 2025 | — | 256K |
Text input
Text output
|
★★ | ★★★★ | $$$$$ |
| xAI: Grok 4 Unavailable | Jul 09, 2025 | — | 256K |
Image input
Text input
File input
Text output
|
★ | ★★★★★ | $$$$$ |
| xAI: Grok 3 Mini Unavailable | Jun 10, 2025 | ~2.7T | 131K |
Text input
Text output
|
★★ | ★★★★★ | $$$$ |
| xAI: Grok 3 Unavailable | Jun 10, 2025 | ~2.7T | 131K |
Text input
Text output
|
★★★ | ★★★★ | $$$$$ |
| xAI: Grok 3 Mini Beta Unavailable | Apr 09, 2025 | ~2.7T | 131K |
Text input
Text output
|
★★ | ★★★★★ | $$$$ |
| xAI: Grok 3 Beta Unavailable | Apr 09, 2025 | ~2.7T | 131K |
Text input
Text output
|
★★★ | ★★★★ | $$$$$ |
| xAI: Grok 2 Vision 1212 Unavailable | Dec 14, 2024 | — | 32K |
Image input
Text input
Text output
|
★★★★ | ★★★ | $$$$$ |
| xAI: Grok 2 1212 Unavailable | Dec 14, 2024 | — | 131K |
Text input
Text output
|
★★★★ | ★★★★ | $$$$$ |
| xAI: Grok Vision Beta Unavailable | Nov 18, 2024 | — | 8K |
Image input
Text input
Text output
|
★★★★★ | ★★★ | $$$$$ |
| xAI: Grok Beta Unavailable | Oct 19, 2024 | — | 131K |
Text input
Text output
|
★★★★★ | ★★★★★ | $$$$$ |