Grok 4.6
SpaceXAI · Released Aug 2026
SpaceXAI's next-generation 2-trillion-parameter model, completing training on July 21, 2026 and targeting an August 7 public launch. It scales up from Grok 4.5's 1.5T to ~2T parameters and aims to match or exceed Kimi K3's capability while preserving Grok's trademark token efficiency and ~80 TPS speed. Positioned as an Opus-class coding and agentic model trained alongside Cursor data, it will ship in Cursor, Grok Build, and the API at expected ~$2/$6 per 1M tokens. Pre-GA: no independent benchmarks exist yet; evaluation is provisional until the model ships and third-party testing validates the claims.
Is it right for you?
Good for
- Expected to lead on token efficiency and per-task cost among frontier models, continuing Grok 4.5's ~4x token savings on coding tasks
- Trained alongside Cursor IDE data for strong repository-scale coding and agentic task performance
- Targets ~80 TPS throughput with custom C/C++ inference for fast iteration loops
Not good for
- Strictly capped at 500K context, not 1M+ — Anthropic and Google offer larger windows for long-document work
- EU availability may lag behind US launch, as was the case with Grok 4.5
- No independent benchmarks or third-party evaluation available yet — all claims are vendor projections
Pricing
Input
$2.00 / 1M tokens
Output
$6.00 / 1M tokens
Context
500K tokens (expected, based on Grok 4.5)
No verdict changes yet
The clock starts day one — changes land here as our verdict evolves.
Sources
- TechCrunch — SpaceXAI releases Grok 4.5, which Elon describes as an 'Opus-class model'Jul 2026
- CryptoBriefing — xAI Plans Aggressive Rollout of Grok ModelsJul 2026
- IntraMind — Grok 4.6: Musk's Two-Week AI ShakeupJul 2026
- NextBigFuture — SpaceXAI Will Release Grok 4.6 in 2 WeeksJul 2026
- Basenor — Grok 4.6 Confirmed: What We Know From the xAI RoadmapJul 2026
- AI Tools Review — Grok 4.5 Benchmarks & Pricing (for Grok 4.6 baseline)Jul 2026
- KIE.ai — What Is Grok 4.6? xAI's 2T-Param Model ExplainedJul 2026
- Yahoo Finance — SpaceXAI to Launch Grok 4.5 (confirms SpaceXAI rebranding)Jul 2026
- Economic Times — Elon Musk Teases Grok 4.6 and 4.7Jul 2026
- Wan 2.7 — Grok 4.6: SpaceXAI's 2T Model Completes TrainingJul 2026
Verification log
- Pricing— No changes
Automated agent