Claude Code

Theo’s Codex prompt critique gets one big thing right: the harness is part of the model

Theo says OpenAI removed a prescriptive Codex front-end prompt after he raised the issue. That causation remains his firsthand account. The public evidence is the larger point: system prompts, tool rules, and orchestration shape a coding agent as much as the model name on the picker.

AI Coding · Jul 16, 2026

Claude Opus 4.8 Is Anthropic’s New Agent Benchmark, With One Clear Caveat

Anthropic’s Claude Opus 4.8 release is less about a new chat personality and more about long-running agent work: stronger SWE-bench Pro results, better tool use, 1M-token context, mid-conversation system messages, cheaper fast mode, and Claude Code dynamic workflows.

AI Tools · May 28, 2026

Two AI Agent Security Incidents in One Week Show the Field's Growing Pains

TrapDoor hijacks AI coding assistants through supply chain malware. Composio gets breached via an internal AI agent. Here's what happened and what to do.

AI Security · May 24, 2026

Claude Fable 5.2 and Mythos 5.2: benchmarks, pricing and access

Anthropic lowers Fable and Mythos API token prices by 20%, improves long-running agent work and keeps less-restricted access behind verification.

AI Models · Nov 9, 2026

67js gives AI agents a 3D scene they can revise

The open-source WebGL2 renderer connects agents to editable scenes through MCP, with PNG feedback, revision checks and local media export.

AI Tools · Nov 9, 2026

Gemini 4 Carbon Takes the Intelligence Lead, With Cyber Defenders First in Line

Google's new frontier model tops Artificial Analysis's revised index and improves sharply on Argon in coding and cybersecurity. It still trails important rivals on individual tasks, and broader access is not open yet.

AI Models · Oct 28, 2026

Kimi K3.1 Pro cuts API rates; weights promised by November 4

Moonshot's new model lowers K3's per-token API rates by a third. Independent testing puts it near the top on intelligence, but slow output and heavy token use complicate the savings.

AI Models · Oct 25, 2026

LiteLLM's Poisoned 1.107.0 Release Started With GitHub Tokens in Its Own Gateway Logs

Malicious LiteLLM wheels and Docker images were live for about two hours on October 21. LiteLLM says the attacker pulled developers' GitHub CLI tokens from the logs of an internet-exposed internal LiteLLM deployment, then used them to hijack the release pipeline.

AI Security · Oct 23, 2026

Claude Duet is Anthropic’s proactive agent app, and it asks before it sends, pays or deletes

The research preview runs on Claude Opus 5.5 in its own cloud computer, checks your connected apps every few hours and shares Pro and Max usage limits. It opens by waitlist to US subscribers.

AI Agents · Oct 21, 2026

Meta’s Muse Wonder reaches the API at $4/$20, while Wonder Full stays inside Muse Code

Meta’s new frontier pair targets personal and professional agents. Muse Wonder is in preview on the Meta Model API with a 1M-token context; the stronger Muse Wonder Full is limited to higher Muse Code plans, which default to training on your content.

AI Models · Oct 13, 2026

Claude Haiku 5.5 brings cheaper tokens and adjustable effort to subagents

Anthropic’s small model adds a million-token context and adjustable effort. The cheapest rates stop at 100,000 prompt tokens, and its strongest benchmark scores do not represent the default setting.

AI Models · Oct 8, 2026

Claude Sonnet 5.5 keeps its predecessor’s API price, but promises cheaper finished work

Anthropic’s new Sonnet ships at $2 per million input tokens and $10 per million output tokens. The claimed savings come from using fewer tokens per task, not a lower token tariff.

AI Models · Sep 28, 2026

Hermes Agent adds an experimental Claude subscription bridge through the official CLI

The new DirectSDK plugin keeps Hermes’ tools, approvals and history while handing model calls to the unmodified Claude Code executable. It is useful, carefully bounded, and not a magic exemption from Anthropic’s account rules.

AI Agents · Sep 21, 2026

Claude Code Projects now run a coordinator over cloud threads

Beta on September 17, 2026 for a narrow Pro/Max slice. Existing web and desktop projects are not this cut.

AI Agents · Sep 18, 2026

OpenAI’s Agents API puts the Codex harness in the cloud

Public beta. No extra API fee. You pick the sandbox. OpenAI runs the loop.

AI Agents · Sep 11, 2026

DeepSeek-V4.1-Flash is a 552B MoE that activates 8B on the way in

Official weights and API `deepseek-flash` shipped September 10, 2026. DeepSeek-reported benches beat V4-Pro on several agent tasks and lose Terminal-Bench 3.0/4.0 and HLE to Opus 5.0. Independent public boards do not list 4.1-Flash yet.

AI Models · Sep 10, 2026

Claude Fable 5.1: cheaper cache, quieter fallbacks, same two-tier split

Anthropic’s September 1 models keep Fable 5’s $10/$50 list price. Cache reads drop to $0.25 per million tokens, the June retention fight gets a stopgap, and Mythos 5.1 stays gated.

AI Models · Sep 1, 2026

OpenClaw 2.0 is 2026.8.1

After seven quiet weeks, the project shipped the largest cut in its history. The CalVer tag is 2026.8.1. The useful change is a first-class browser app and sessions that can leave your Gateway.

AI Agents · Aug 31, 2026

GLM-5.3-Flash lists at $0.15 / $0.50 — a tenth of Z.ai's own flagship

Z.ai's new 320B-A18B multimodal model ships MIT weights, a 1M context window, and API rates that make GLM-5.3 look expensive.

AI Models · Aug 27, 2026

Claude Code 2.1.232 makes forked subagents the default

The August 13 cut also closes PowerShell, Git Bash, and shared `/tmp` holes. Version 2.1.233, a day later, had to walk two of the Bash permission changes back.

AI Agents · Aug 15, 2026

Kimi K3 costs $18. Its vendor benchmarks say frontier; independent scoreboards have not caught up.

Kimi K3 costs $3 per 1M uncached input tokens and $15 per 1M output tokens. Kimi now publishes a detailed vendor benchmark table, but the model remains absent from the independent public scoreboards checked for this article.

AI Models · Jul 16, 2026

OpenClaw 2026.7.1 makes the Gateway the place where agent work can be seen and recovered

The project’s July release rewires its Control UI and onboarding while adding GPT-5.6 routing, deeper Codex continuity, offline mobile reading, and safer recovery when a Gateway or channel delivery goes wrong.

AI Agents · Jul 14, 2026

GPT-5.6 after day one: the benchmarks, the caveats, and the real work

OpenAI’s Sol, Terra, and Luna family is now live. Here is what the official scorecards actually say, where independent and early practitioner evidence agrees or pushes back, and which use cases look ready for production testing.

AI Models · Jul 10, 2026

Grok 4.5 makes the frontier-model price fight real

Grok 4.5 does not beat GPT-5.6 Sol or Claude Fable 5 outright. The story is price-performance: near-frontier agent scores, $2/$6 API pricing, and token-efficiency claims that could make it a practical choice for cost-sensitive coding and tool-heavy workflows.

AI Models · Jul 9, 2026

Fable 5 returns as Sonnet 5 gives Anthropic a cheaper agentic default

Anthropic is bringing Fable 5 back after an export-control pause while Sonnet 5 becomes Claude’s cheaper agentic default. The benchmark case is strong, but the split between access, safeguards, and pricing is the real story.

AI News · Jul 1, 2026

Loop Engineering: The Complete Guide to Building Self-Improving AI Agents

Stop prompting your coding agents one shot at a time. Here is how to design loops that prompt them for you—and when the extra complexity is worth it.

AI Coding · Jun 19, 2026

SpaceX Is Buying Cursor. The Target Is Codex.

SpaceX’s $60B Cursor deal is not just an AI coding acquisition. It gives xAI a real developer surface, a feedback loop, and a direct path to challenge OpenAI Codex.

AI Coding · Jun 16, 2026

Kimi-K2.7-Code: Moonshot Open-Sources 1T Coding Model with Strong Agentic Gains

Moonshot AI released Kimi-K2.7-Code today, an open-weight 1T-parameter MoE model showing +21.8% on Kimi Code Bench v2, +11.0% on Program Bench, and +31.5% on MLS Bench Lite over K2.6, with 30% lower reasoning token usage.

AI Tools · Jun 12, 2026

xAI Opens the Grok Build Plugin Marketplace with MongoDB, Vercel, and Chrome DevTools at Launch

xAI turns its terminal-based coding agent into an extensible platform, shipping a built-in marketplace with plugins from six major vendors including MongoDB, Vercel, Sentry, Chrome DevTools, Cloudflare, and Superpowers.

AI Tools · Jun 11, 2026

xAI Ships Grok Build 0.1: A Purpose-Built Coding Model Enters the Agentic Race

xAI's new grok-build-0.1 model is now available via API. 256K context, 100+ tok/s, and a 70.8% SWE-bench score. Here is what the benchmarks, reviews, and pricing actually say.

AI Tools · Jun 5, 2026

OpenAI Codex Evolves Into a Full Developer Workstation: Computer Use, Goals, and 90+ Plugins

OpenAI's Codex has shifted from a coding assistant to a persistent autonomous workstation. Between April and May 2026, the desktop app gained background computer use, an in-app browser, image generation, persistent memory, and 90+ plugins. The CLI added Goal Mode, Vim editing, MCP improvements, and a Python SDK with first-class auth. Here's what changed and what it means for developers.

AI Coding · May 30, 2026

Hermes Agent’s Velocity Release Turns the CLI Into a Multi-Agent Workbench

Hermes Agent v0.15.0, tagged v2026.5.28, is less about one flashy feature than a broader shift: a smaller agent core, stronger Kanban orchestration, faster local recall, promptware defenses, Bitwarden secrets, and a larger plugin surface.

AI Tools · May 28, 2026

xAI Brings Grok OAuth to Coding Agents and Personal Assistants

xAI is adding OAuth support to open-source agents. Your X Premium or SuperGrok subscription now works inside Hermes, OpenClaw, and OpenCode with a single login.

AI Tools · May 21, 2026

Grok Build Is Here, But It Costs $300 a Month

xAI launched Grok Build, a terminal-based AI coding agent with plugins, subagents, and Claude Code compatibility. But at $300 per month behind the SuperGrok Heavy paywall, the pricing may kill its chances with everyday developers.

AI Tools · May 16, 2026

Open Design turns Claude Design’s artifact loop into an open-source local workflow

Open Design is a local-first, Apache-2.0 design studio that uses your existing coding-agent CLI, file-based skills, portable design systems, and a sandboxed artifact preview loop to generate pages, decks, apps, documents, and media.

AI Design · May 11, 2026