x-ai/grok-4.6Grok 4.6 is xAI’s proprietary AI model, released Aug 12, 2026. It costs $2/M input and $6/M output tokens, and handles a 500K-token context window. Its strongest use case is math, where it ranks in the 93rd percentile of the models Model Beat tracks.
Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Scores on standardized evaluations. Higher is better — and rank shows where Grok 4.6 lands among all models tracked on Model Beat.
Abstract visual reasoning
Harder abstract reasoning
Graduate-level scientific reasoning
Frontier of human expert knowledge
Factual accuracy & hallucination
Novel ML problem-solving
Scientific research coding
Human-rated web development
Olympiad-qualifier math
Multi-step agentic tasks
Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Grok 4.6 is an AI model developed by xAI, part of the Grok family, released Aug 12, 2026.
Grok 4.6's list price from xAI is $2 per million input tokens and $6 per million output tokens.
Grok 4.6 supports a context window of up to 500K tokens.
On standardized evaluations tracked by Epoch AI, Grok 4.6 scores 94.0% on GPQA Diamond, 1631 on WebDev Arena, 99.2% on AIME 2024/2025.
Grok 4.6 is a proprietary model (API access), available through its provider's API rather than as a downloadable open-weight model.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Aug 20, 2026.