SpaceXAI Releases Grok 4.6 — Leader in Price and Agentic Tasks

SpaceXAI released the Grok 4.6 model on August 12 with 1.5 trillion parameters, which became the leader in the GDPVal-AA v2 and DeepSWE v1.1 benchmarks at a price twice as low as competitors.

Compiled by Sergey KostenchukPublished 2026-08-12Updated 2026-09-18

2026-08-12 Business OpenAI

💼 SpaceXAI Releases Grok 4.6

SpaceXAI released Grok 4.6 on August 12 — 1.5 trillion parameters, enhanced RL training for agentic tasks. DeepSWE increased from 54% to 65.9%, GDPVal-AA v2 — 1753 (leader). The price has not changed: $2/$6 per million tokens, twice as cheap as GPT-5.6 and Fable 5 Max. The model is available in Cursor, Grok Build, and via API.

🌍 Grok 4.6 sets a new price/performance standard in the frontier segment. The update pace — a new version every few weeks — puts pressure on OpenAI and Anthropic.

👤 Doubled limit for the first week in Cursor and Grok Build. API via console.x.ai.

Source 1: https://x.ai/news/grok-4-6 Source 2: https://www.unite.ai/spacexai-launches-grok-4-6-for-long-running-agents/

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