Grok 4.3
xAI · Active · Updated May 20, 2026
xAI's latest frontier model with real-time X/Twitter data access, enhanced reasoning, and multimodal understanding.
Input Price
$1.25/M
per million tokens
Output Price
$2.50/M
per million tokens
Context Window
262,144
tokens
Max Output
16,384
tokens
Technical Specifications
| Provider | xAI |
| Release Date | February 1, 2026 |
| Pricing Type | per token |
| Input Price | $1.25.00 / 1M tokens |
| Output Price | $2.5.00 / 1M tokens |
| Cached Input | — |
| Context Window | 262,144 tokens |
| Max Output | 16,384 tokens |
| Input Modalities | text, image |
| Output Modalities | text |
| Status | active |
| Availability | api, web_app |
| Latency | fast |
| Rate Limit | 2,000 RPM |
| Pricing URL | View official pricing → |
| Docs URL | View documentation → |
Capability Scores
Coding84
Reasoning82
Math78
Image68
Speed76
Overview
Grok 4.3 represents a significant leap forward for xAI, featuring a 256K context window, enhanced reasoning capabilities, and improved coding performance. It maintains real-time access to X/Twitter data — a unique advantage for applications requiring up-to-the-minute information. Grok 4.3 is particularly well-suited for tasks that benefit from current events awareness and social media trend analysis.
Pros
- +Real-time access to X/Twitter data for current information
- +256K context window — double the previous generation
- +Significantly improved reasoning (82/100) and coding (84/100)
- +Less restrictive conversational boundaries
Cons
- −Premium pricing at $4/$12 per million tokens
- −Lower benchmark scores than top-tier competitors
- −Smaller ecosystem and developer community
Use Cases
Real-time social media analysis and trend detection
Conversational applications requiring up-to-date knowledge
Content creation with current events awareness