The Brief

New briefs daily around 7 AM Eastern

Move routine agent work to GPT-6.1 Sol and cut cost per task by 75%

OpenAI released GPT-6.1 Sol at $2/$10 per million tokens, and Artificial Analysis scores it 1 point below GPT-6 Astra at under a quarter of the cost per task. Agent workloads that don't need Astra can now run much cheaper.

• 01Read

  Move routine agent work to GPT-6.1 Sol and cut cost per task by 75%

  OpenAI released GPT-6.1 Sol at $2/$10 per million tokens, and Artificial Analysis scores it 1 point below GPT-6 Astra at under a quarter of the cost per task. Agent workloads that don't need Astra can now run much cheaper.

  crorella→OpenAI Developers→Artificial Analysis→Zachary Chen→
• 02Read

  OpenAI launches dots, an always-on agent that returns PRs from Codex

  OpenAI introduced dots, an always-on agent powered by GPT-6 Astra with its own cloud computer, which triages issues, scopes failing builds and uses Codex to return pull requests for review.

  OpenAI launches dots, an always-on cloud agent for developer workflows→Codex cloud environments let agents keep working with your laptop closed→OpenAI DevDay roundup: Codex PR review, plugin extensions, MCP Events→
• 03Read

  OpenAI Ultrafast runs GPT-6 Astra up to 8x faster in Codex and API

  OpenAI launched Ultrafast for GPT-6 Astra, up to 8x faster than Standard in Codex, available to all API developers with WebSocket mode in the Responses API.

  OpenAI Developers→
• 04Read

  Anthropic red team finds open GLM-5.3 builds exploits in 4% of tasks

  Anthropic's Frontier Red Team reports that open-weight GLM-5.3 produces full control-flow hijacks in 4% of binary exploitation tasks, near Claude Mythos Preview's 6%, where GLM-5.2 and Claude Opus 4.6 solved none.

  Quoting Anthropic Frontier Red Team→Artificial Analysis→
• 05Discuss

  Artificial Analysis finds Sonnet 5.5 costs $7.60 per task on tokens

  Artificial Analysis measured the heaviest output token use it has recorded on Claude Sonnet 5.5, which raises cost per task about 50% above Sonnet 5 despite unchanged per-token prices.

  Artificial Analysis→ClaudeDevs→
• 06Read

  Cloudflare tests its own WAF with an LLM that mutates known exploits

  Cloudflare built an LLM-driven tester that starts from known exploits and iterates on encoding and delivery using only HTTP responses, to see whether its WAF holds up against AI-style attack mutation.

  We tested our own WAF with frontier AI models. Here’s what we found→Introducing Threat Signals: agentic skills for open-source threat intelligence, free for every Cloudflare account→
• 07Read

  Stripe Link lets shopping agents raise an approved amount mid-checkout

  Stripe extended Link's wallet for agents with incremental authorization for price changes at checkout, checkout obstacle guidance, spending analysis and purchase protection, as agentic purchases via Link grew 38x in a month.

  Helping personal agents shop more intelligently and reliably with Link→