New Models
Muse Spark 1.1 & Meta Model API
Meta launches Muse Spark 1.1 and its first paid Meta Model API
Mark Zuckerberg returned to X (35 seconds into the ThursdAI live show) to announce Muse Spark 1.1: a 1M-token-context agentic model that rivals GPT-5.5 and Opus 4.8 on agentic evals, claiming #1 on MCP Atlas, JobBench, Humanity's Last Exam and Finance Agent V2. It ships with Meta's first-ever paid developer API in public preview ($20 free credits, US-only at launch), computer use across desktop, browser and mobile, and parallel subagent delegation. On the held-back Vals AI Harvey legal-agent benchmark it scores 20% against Fable's 11%. Replit, Cline and Box are early partners. No open weights.
$1.25/$4.25 Per 1M tokens (in/out)1M Token context window20% vs 11% Harvey Legal Agent Bench vs Fable
APIs & Platforms
Gemini API Managed Agents
Gemini API Managed Agents add background tasks and remote MCP
Google expanded Managed Agents in the Gemini API with background task support, remote MCP and function calling, and network credential refresh — available on the free tier, positioning Gemini's agent infrastructure directly against OpenAI's agent primitives.
Free tier Availability
APIs & Platforms
GPT-Realtime-2.1-mini
GPT-Realtime-2.1-mini brings reasoning and tool use to the Realtime API mini tier
Two days before GPT-Live, OpenAI upgraded the Realtime API mini lineup with reasoning and tool use at unchanged pricing, plus a 25%+ p95 latency cut from improved caching. Notably it does not include GPT-Live's full-duplex capability, which remains app-exclusive.
≥25% p95 latency reduction
New Models
GPT-5.6
OpenAI ships GPT-5.6 as a three-model family: Sol, Terra and Luna
GPT-5.6 arrives as three models — Sol (frontier), Terra (~5.5-level intelligence at half the cost) and Luna (small and fast) — plus a new Ultra mode with a Max reasoning level and heavier sub-agent use. Dominik Kundel confirmed on ThursdAI that 5.6 Sol is coming to Cerebras at extreme speed running the same weights as the API model, not a distill.
3 models: Sol / Terra / Luna50% Terra cost vs GPT-5.5-level intelligence