Opus 4.7 dropped on April 16. Most devs use it exactly like Sonnet. Effort mode, cache, vision, instruction following, routing: 5 specific settings, with use cases and pitfalls.
Anthropic valued at $965B with a confidential IPO, Opus 4.8 with 1,000 sub-agents, Gemini Spark 24/7: the week everything tipped over.
GPT-5.5 Instant as ChatGPT default, Anthropic signs with SpaceX (220K GPU), Codex on Chrome, OpenAI smartphone fast-tracked. The 5 stories of the week.
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