Claude Opus 5.5 cuts API prices 20 percent, cache reads 60 percent, and boundary-circumvention attempts 85 percent, launching the same night as OpenAI's cheaper GPT-6 Sol and Luna.
Meta's Connect developer sessions made the Model API generally available globally, shipped a 30B open-weights model that runs on a Mac Mini, took Muse Code out of beta, and opened a $1M hackathon.
Project HydraFusion, now in experimental preview for Copilot CLI, picks a mix of models for each coding job at runtime — cutting estimated costs by 67% while matching frontier model quality on benchmarks.
The world's dominant AI chip maker is acquiring the platform where 18 million developers find, share, and deploy open-source models. The deal closes in early 2027 — pending regulatory review.
DeepSeek's new V4.1 Flash model beats V4 Pro on benchmarks while running at Flash pricing. Starting September 14, V4 Pro API requests automatically redirect to it.
Gemini 3.5 Flash, Gemini 3.6 Flash, Kimi K2.7 Code, and Claude Opus 4.7 are all being cut from Copilot on October 2. The Kimi replacement costs more and is off by default for enterprise customers.
Meta's agentic coding model gets stronger benchmarks, 20% fewer tool calls, and a new Contributor tier at $0.10 per million input tokens — 21x cheaper than the standard price, in exchange for your prompts and completions being used for training.
OpenAI's most capable model yet hits 100% on ExploitBench, 98.6% on ARC-AGI-3, and operates software faster than any previous version. Greg Brockman says welcome to the AGI era.
Alibaba released a new checkpoint of Qwen3.8-Max on September 2 with targeted improvements to engineering-scale coding, multi-tool agent orchestration, and document understanding.
Anthropic's latest frontier model improves on Fable 5 for long-running agentic work, cuts cache read costs to a quarter of the old rate, and introduces three API-breaking changes that developers need to handle before migrating.
Gemini 3.1 Pro, Claude Opus 4.5, Claude Opus 4.6, Claude Sonnet 4.5, Claude Sonnet 4.6, and Raptor Mini are all being deprecated across every Copilot surface. Here's what to switch to.
A mystery model called Ox Alpha has been running free on OpenRouter and OpenCode since August 20. It claims a 1M-token context window and 100 trillion tokens per day of capacity. The creator has not come forward, and fingerprinting points toward a company on the U.S. government's Entity List.
Z.ai's new open-weight model hit 84.5% on CyberGym and 54.4% on ExploitBench, and has already identified a serious security flaw in the Cursor code editor.
Two new models landed in GitHub Copilot this week: Kimi K3 from Moonshot AI at $3 per million tokens, and MAI-Code-1.1-Flash, Microsoft's own code model with native image understanding. Agent Plugins 1.0 also went generally available.
The new entry-level model outpaces Claude Sonnet 5 and GPT-5.6 Terra on several tests, ships at $0.75 per million input tokens through year-end, and powers Google's Gemini Spark agent.
Moonshot AI's 2.8-trillion-parameter open-weight model is rolling out across Copilot's Pro, Pro+, Max, Business, and Enterprise plans with usage-based billing at competitive rates.
xAI is releasing Grok 4.6 around August 7, with Grok 4.7 (the actual 2.1T model) following weeks later. Both matter for Cursor users now that SpaceX owns Anysphere.
Alibaba's biggest model yet went from preview to general availability on August 3. Qwen3.8-Max is a 2.4-trillion-parameter mixture-of-experts model with a 1M-token context window and strong agent benchmarks — though independent evaluations haven't caught up yet.
Supabase Evals runs Claude Code, Codex, and OpenCode against actual Supabase tasks — building schemas, fixing Edge Functions, debugging RLS policies — in real environments with real scoring.
DeepSeek V4-Flash-0731 went official on July 31 with a completely retrained post-training pass. The result: it now outperforms V4-Pro-Preview on all nine published agent and coding benchmarks — at one-third the price.
Responding to accusations of opposing open-source AI, Anthropic's CEO clarified the company's actual position: open-weight models are a public good, with one serious exception.
Claude Opus 5, Anthropic's newest flagship model, is now available in GitHub Copilot on Pro+, Max, Business, and Enterprise plans. It targets agentic workflows where careful reasoning and multi-step execution matter, and carries usage-based pricing at the provider's list rate.
Moonshot AI released the full open weights for Kimi K3 on July 26-27. At 1.4TB in MXFP4 format, it's the largest open-weight model ever published. Together AI and Modal launched day-0 hosted access for teams without Blackwell hardware.
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