Every daily briefing we have published. Use the calendar on any briefing page to jump to a specific day.
ChatGPT rolls out GPT-6 and a new Intelligent UI to all users; StepFun's Step 5 Preview is free for a week on Kilo and Nous Portal; Microsoft's Decision-1 launches on OpenRouter at $0.042/M input.
OpenAI launches GPT-6.1 Sol Ultrafast with up to 8x faster speeds and instant steering, live on API, Codex, and ChatGPT Work. Meanwhile Google releases on-device multimodal embedding model EmbeddingGemma 2, Qwen open-sources 8-step Image 2.1 Turbo, and Step 5 Preview plus Qwen models offer limited-t
OpenAI announced the GPT-6 and Intelligent UI rollout to all ChatGPT users, plus a one-time usage reset for paid accounts. Anthropic launched Claude Haiku 5.5 at roughly 75% lower running cost than Haiku 4.5, and halved Claude Sonnet 5.5 cache-read pricing to $0.10 per million tokens. Step 5 Preview
Mistral AI launched Mistral Large 4, a 1T-parameter multimodal open-weights model claiming to be the best from the US or Europe, with leading results on CTF, automation, and legal benchmarks. OpenAI also cut its top API rate tier threshold from $1000 to $500.
Mistral released Large 4 (Le Chonk), a 1T-parameter, 49B-active natively multimodal open-weights model, now in public preview on OpenRouter at 50% off for two weeks ($0.68/M input, $2.09/M output). Reflection AI also announced Beam, a 501B-param agentic model with weights open-sourcing this month.
Same model weights score 62% under Mini-SWE-Agent versus 33% under Claude Code, showing harness choice matters hugely; Requesty reveals Claude Opus 5.5 cache hits cost 20x less than misses, Nvidia open-sources Lyra 2.0 image-to-3D-world tool, and Security-One open-weight 27B security decision model
Cline integrates the 560B MoE Ling 3.1 Flash with free access until October 13, while Command Code adds several free open models with Ling 3.1 Flash boosted to 300 requests per day. Measured tests show LiteLLM cuts time-to-first-byte on long prompts by 94%.
OpenCode now offers InclusionAI's Ling-3.1-flash for free (560B params, 262K context) with Command Code raising daily limits to 300 requests; ChatGPT rolls out a Finances feature to free and paid US users, letting them link accounts via Plaid and Experian to track spending and credit scores.
Coding agent Cline found 9B-token tasks cost about $8,500 on Claude Opus 5 versus $300 on DeepSeek V4 Pro. OpenAI announced a global usage reset for paid ChatGPT accounts at 10am PST tomorrow.
Google DeepMind announced Gemini 4 Argon, rolling out to trusted testers via the Fairwind Program with an industry-leading 1M token output limit, while Perplexity's contextual embedding model pplx-embed-v2-context-9b-preview set new ConTEB records at 1/8 the storage of voyage-context-4. Other notabl
OpenAI released GPT-6.1 Sol at one-fifth the price of Astra with a 95% cache read discount, alongside always-on dots agents, a Pro 500 plan with 25x Plus limits, and an Ultrafast 8x speed tier, available across ChatGPT Work and Codex.
Anthropic released Claude Sonnet 5.5, over 30% faster than Sonnet 5 and up to 30% cheaper on most tasks, now live on OpenRouter, Requesty, Cursor, and Command Code at $2/M input and $10/M output. Meanwhile, OpenAI reopened its $200 Pro plan with a revised usage algorithm, and Anthropic will reopen P
