Long Context

Meta shipped Muse Spark 1.3 on September 2, 2026: a closed multimodal reasoning model built for long-running agentic workflows, multi-agent setups and coding. Two numbers made the headlines. It scores 75.4 on DeepSWE v1.1, edging past Claude Opus 5, and it hits 98.1% retrieval across a full million tokens of context. Both are real. Both come with a footnote, and the footnotes are what this post is about. What Is Muse Spark 1.3? 🧠 Muse Spark is Meta Superintelligence Labs’ closed flagship series. Version 1.3 succeeds 1.2, and the pitch is not producing one good answer but carrying a long task all the way to the end. ...

Summary: Grok 4.6 in 30 Seconds Grok 4.6 is SpaceXAI’s new flagship model, announced on August 12, 2026. It is a post-training upgrade on the Grok 4.5 base, not a new foundation model. It scores 61 on the Artificial Analysis Intelligence Index: five points above Grok 4.5 from a month ago, level with GPT-5.6 Sol, two points behind Claude Opus 5. Pricing did not move: $2 per 1M input tokens and $6 per 1M output. Roughly half what rivals charge. A new reasoning tier arrived: xhigh. The model also checks and verifies its own work far more often. The context window is 500K tokens, but any request above 200K doubles the price of the whole call. In the AI race, a month is a long time. In early July we were writing about Grok 4.5. Five weeks later SpaceXAI announced Grok 4.6 and put the model straight back into the frontier conversation. ...

On August 8, 2025, we witnessed the biggest moment in OpenAI’s history. GPT-5 opened a new chapter in the artificial intelligence world. Now we don’t just have a chatbot in our pocket, but a team of PhD-level experts in every field! This revolution, which Sam Altman describes as “You’ll feel like you’re talking to an expert,” raises the bar to a completely different level with both its technical performance and human touch. ...