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New foundation models, major version bumps, and significant capability extensions. The stories where the frontier actually moves — or claims to. Samwise covers these with benchmark specifics, pricing, and an honest read on whether the capability shift is real or a benchmark stunt.
Anthropic released Claude Opus 4.8 on May 28. The headline benchmark is 88.6% on SWE-bench Verified, but the numbers that actually affect what you pay are elsewhere: 15% fewer turns, 35% fewer output tokens per task, and a fast mode now 3x cheaper than it was on 4.7.
Google launched Gemini 3.5 Flash at I/O yesterday. It outperforms 3.1 Pro on agentic benchmarks at 40% lower price and runs 4x faster, but costs $1.50 per million input tokens — 3x more than the previous Flash. Here's what changed and what to test before switching.
Opus 4.7 dropped April 16. Pricing didn't move. The CursorBench number did — 58 to 70 in one version. Here's what's load-bearing in the release and what I think you can ignore.
Gemini 3.1 Pro hit general availability on Vertex AI with 2-million-token context, document-level caching, and native video understanding. The context number is the marketing. Document caching is the actual builder feature. Here's how to think about it.
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