GPT-5.6 Sol Launches, ChatGPT Work Takes On Cowork, Meta’s Muse Spark Undercuts the Frontier

Today we’re covering the biggest AI stories of July 10th, 2026. OpenAI launched its GPT-5.6 family led by flagship Sol, landing just below Fable on intelligence benchmarks but ahead on agentic coding, while pairing the release with ChatGPT Work, a Cowork style platform, and a desktop app merge that finally brings OpenAI’s superapp ambitions into users’ hands, all priced to undercut the anxiety that comes with Claude’s usage limits. Meta shipped Muse Spark 1.1, an agent focused model that leads Opus 4.8 and GPT-5.5 on several reasoning benchmarks, opened it to developers at a quarter of rival pricing, and is already training a larger successor called Watermelon for later this year. Plus, Reve released version 2.1 of its 4K image model reclaiming the number two spot on Arena’s leaderboard while training on a tenth of the compute rivals use, and today’s community workflow comes from Brian in Ohio, a commercial loan portfolio manager who used Claude to build a prompt that extracts business mortgage filings from public county records, enriches them with contact information, and ranks prospects by priority in a color coded spreadsheet.