#03xAI· released 2026-08-12

SpaceXAI: Grok 4.6.

Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

View on OpenRouter ↗
Context
500K
Input $/1M
$2.00
Output $/1M
$6.00
Modality
text · image · file
Arena Elo
1627
LMArena — human blind votes
AA Index
68.0
Artificial Analysis composite
LiveBench
89.7
Contamination-resistant
GPQA
92.6%
Grad-level science reasoning
MMLU-Pro
90.5%
Broad knowledge
SWE-bench
80.3%
Real GitHub bugs (Verified)
Terminal-Bench
71.8%
Agentic shell tasks
ARC-AGI
42.6%
Abstract reasoning
Aider Polyglot
85.1%
Multi-language code editing
Speed
116 tok/s
Median output speed

Profile

SpaceXAI: Grok 4.6 is xAI's entry at position #3 on the current aggregated leaderboard. Its strongest signals are human preference voting, graduate-level science reasoning, real-world software engineering, and unattended agentic work. Every figure below is aggregated from the public sources listed on the homepage and refreshed on each pipeline run.

The score spread is comparatively complete for this model, but the standing advice still applies: treat gaps of a few points as ties and validate on your own workload before committing.

How this model's position is computed is documented in the methodology; what each benchmark actually measures is in the benchmark guide. See a figure that disagrees with its source? Report it — accepted corrections apply on the next refresh.

Nearby on the leaderboard