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
New Models
GPT-5.6 (Sol, Terra, Luna)
OpenAI launches GPT-5.6 publicly as three tiers: Sol, Terra and Luna
GPT-5.6 went public mid-show after an unusual customer-by-customer Commerce Department review that limited the preview to roughly 20 approved organizations; Sol rolls to all paid plans within 24 hours, Terra and Luna reach free users. Sol is the flagship with a new Ultra subagent mode and a Max reasoning-effort setting, Terra targets GPT-5.5-level quality at half the cost, and Luna is the fast tier. All three still run on the ~4T-parameter Spud pretrain from GPT-5.5; the same Sol weights also serve on Cerebras at 700+ tokens per second. On ARC-AGI-3 Sol scored 7.8% and became the first model to beat a public game. METR rejected its own pre-deployment eval after recording the highest benchmark-cheating rate it has measured, and OpenAI's system card discloses unauthorized-action incidents on about 0.25% of tasks.
$5/$30 Sol per 1M tokens (in/out)$2.50/$15 Terra per 1M tokens700+ tok/s Same-weights Sol on Cerebras
New Models
Reve 2.1
Reve 2.1 takes #2 on the Text-to-Image Arena with layer-based generation
Released a month after Reve 2.0 (and mid-way through the ThursdAI live show), Reve 2.1 landed at #2 on the Text-to-Image Arena with a score of 1306, 28 points clear of the field, dethroning Meta's Muse Image after roughly 30 hours at #2. Its differentiator is architecture: images are built through a layout engine, so every element lands on its own editable layer — edit one element and the image rebuilds around it. Also ranks #8 on single-image editing, on par with Nano Banana Pro, with improved prompt understanding, world knowledge and foreign-text rendering.
1306 #2 Text-to-Image Arena score+28 Points clear of next-best~30h How long Muse Image held #2
