13 Aug 2026

SpaceXAI just dropped Grok 4.6, and it just matched the absolute frontier - Claude Fable 5 Max & GPT-5.6 Sol Max - while being ~80% cheaper

According to Arena.ai @arena, this release by @SpaceXAI just landed in the Code Arena: WebDev at #7 with 1618 pts. Grok 4.6 (High) is a big jump from Grok 4.5, which sits at #13 with 1553 pts. It's now on par with GPT-5.6 Sol xHigh (1622 pts) and Claude Fable 5 (1627 pts). This is especially impressive once you remember that OpenAI and Anthropic already had multi-year leads when Grok launched in 2023. Yet, they’ve closed the gap in under 3 years through pure execution speed and focus. Never bet against Elon. Source: Linas Belunas, Arena.ai All three currently land in the #5-7 rank range with only 4-9 pts of separation. Expect the picture to sharpen as more votes roll in and CIs tighten.

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