Anthropic released Claude Opus 4.7 on April 16, 2026 — its most capable generally available model to date. Here's everything you need to know: benchmarks, pricing, breaking API changes, adaptive thinking, 3x vision upgrade, and how it stacks up against GPT-5.4, Gemini 3.1 Pro, and the restricted Claude Mythos Preview.
Google released Gemma 4 on April 2, 2026 under Apache 2.0 — their first fully permissive open model. The 31B dense model scores 89.2% on AIME and 80.0% on LiveCodeBench. The 26B MoE variant delivers 97% of that performance with only ~4B active parameters. Here's the full breakdown.