Grok 4.5
MultimodalGrok 4.5 is xAI's flagship frontier model released in July 2026, ranking among the top models on GPQA, SWE-Bench Pro, and knowledge-reliability metrics such as the AA-Omniscience Index. It features a 500K token context window and multimodal input at $2.00 per million input tokens.
Key Specifications
Parameters
-
Context
500.0K
Release Date
July 16, 2026
Average Score
76.0%
Timeline
Key dates in the model's history
Announcement
July 16, 2026
Last Update
August 27, 2026
Technical Specifications
Parameters
-
Training Tokens
-
Knowledge Cutoff
February 28, 2026
Family
-
Capabilities
MultimodalZeroEval
Pricing & Availability
Input (per 1M tokens)
$2.00
Output (per 1M tokens)
$6.00
Max Input Tokens
500.0K
Max Output Tokens
-
Supported Features
Function CallingStructured OutputCode ExecutionWeb SearchBatch InferenceFine-tuning
Benchmark Results
Model performance metrics across various tests and benchmarks
Reasoning
Logical reasoning and analysis
GPQA
GPQA Diamond, measured by Artificial Analysis (high). • Self-reported
Other Tests
Specialized benchmarks
AA-Omniscience Index
AA-Omniscience Index (raw index 26, range -100 to 100; shifted +100 for 0-based normalization). • Self-reported
Terminal-Bench 2.1
• Self-reported
SWE-Bench Pro
Resolve rate. • Self-reported
License & Metadata
License
proprietary
Announcement Date
July 16, 2026
Last Updated
August 27, 2026
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