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Grok 4.3

xAI

Grok 4.3 is xAI's mid-tier frontier model released in May 2026, focused on efficient agentic and financial-analysis workloads. It offers a 1M token input context at $1.25 per million input tokens via the xAI API.

Key Specifications

Parameters
-
Context
1.0M
Release Date
May 6, 2026
Average Score
38.0%

Timeline

Key dates in the model's history
Announcement
May 6, 2026
Last Update
August 27, 2026

Technical Specifications

Parameters
-
Training Tokens
-
Knowledge Cutoff
-
Family
-
Capabilities
MultimodalZeroEval

Pricing & Availability

Input (per 1M tokens)
$1.25
Output (per 1M tokens)
$2.50
Max Input Tokens
1.0M
Max Output Tokens
-
Supported Features
Function CallingStructured OutputCode ExecutionWeb SearchBatch InferenceFine-tuning

Benchmark Results

Model performance metrics across various tests and benchmarks

Other Tests

Specialized benchmarks
Finance Agent v2
Self-reported
38.0%

License & Metadata

License
proprietary
Announcement Date
May 6, 2026
Last Updated
August 27, 2026

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