ApertureAug 2026
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x

xAI

Memphis / Bay Area

Grok 4.6 ties GPT-5.6 Sol on the Intelligence Index at a third of the output price. 500K context is the main ceiling.

x.ai
01
x

Grok 4.6

xAI · Aug 2026 · Proprietary

60.9
Index
Intel60.9
Code76.8
Agents58.7

Ties GPT-5.6 Sol on intelligence at $2 / $6. Strong agents and GPQA. No public SWE-bench; 500K context is the ceiling.

Price /1M
$2 / $6
Context
500K
Speed
58 t/s
Status
Current
Frontier quality at mid priceAgents
Details
02
x

Grok 4.5

xAI · Jul 2026 · Proprietary

55.8
Index
Intel55.8
Code72.4
Agents48.9

Five weeks older than 4.6, same list price. Only stay if a SWE-Pro number is load-bearing — 4.6 has not published one.

Price /1M
$2 / $6
Context
500K
Speed
60 t/s
Status
Superseded
SWE-Pro tracked pipelines
Details

Aperture is a field guide, not a vendor. Scores compiled 28 Aug 2026.

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