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**OpenAI's agent products** saw a **2.5x weekly usage growth** driven by **Codex + ChatGPT Work** and demand for **GPT-5.6 Sol**. JetBrains adopted Codex as a recommended…
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**Prime Intellect** released **verifiers v1**, a redesigned environment stack for **agentic reinforcement learning** and evaluations, improving efficiency by storing rollout traces as **message DAGs** to reduce…
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**OpenAI** rolled out **GPT-5.6** featuring a new model stratification with tiers **Luna / Terra / Sol** and effort levels including **Max** and **Ultra**, introducing complex configuration…
OpenAI launches GPT 5.6 Sol/Terra/Luna
**OpenAI** launched the **GPT-5.6** family with three models: **Sol**, **Terra**, and **Luna**, integrated across **ChatGPT**, **Codex**, and the API. Pricing tiers range from **$1 to $5…
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**xAI** publicly launched **Grok 4.5**, a new coding-and-agents-focused frontier model emphasizing capability-per-dollar rather than benchmark supremacy. Elon Musk described it as "Opus-class" but faster, more token-efficient,…
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**Anthropic** expanded the "background agent" UX with **Claude Cowork** for mobile and web, emphasizing task-running background teammates. They also extended access to **Claude Fable 5** on…
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**Tencent** released **Hy3**, a **295B MoE** open-weight model with **21B active parameters**, **192 experts**, and **256K context** supporting **MTP speculative decoding**. It runs natively on **vLLM**…
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**Fullstack Code Arena** extends coding agent evaluation to include **databases, API keys, deployments, and structured tool use**, marking a shift to end-to-end app shipping. **LangChain** released…
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**Anthropic** re-enabled **Claude Fable 5** with updated cybersecurity safeguards routing some requests to **Opus 4.8**. The relaunch influenced tooling adoption by **Cursor**, **Devin**, and **Perplexity**. Builders…
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**Anthropic** launched **Claude Sonnet 5** as its new default mid-tier frontier model, featuring a **1M-token context window**, enhanced agentic capabilities including planning, browser and terminal tool…