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Also indexed as claude · anthropic-ai
Anthropic
Anthropic matters because it is simultaneously a frontier model company, a leading supplier of coding agents, and one of the field's most visible experiments in turning safety research into company policy. Its decisions reveal whether those three roles reinforce one another or eventually collide.1,6,8
26 tools · 57 Intel
Profile
Overview
A safety team becomes a company
Anthropic is a San Francisco AI company founded in 2021 by seven former OpenAI employees, including siblings Dario and Daniela Amodei. The founding group had worked across language-model research, safety, policy, and operations. They organized Anthropic as a public benefit corporation and built a Long-Term Benefit Trust intended to give independent trustees a role in governance as the systems become more capable.1,9
Claude becomes a work platform
Claude is both the company's model family and its route to market. Anthropic sells access through Claude.ai, developer APIs, enterprise plans, and cloud partnerships with Amazon Web Services and Google Cloud. Claude Code turned the models into a widely used coding agent, while connectors, plugins, and industry packages widened the product from chat into software development and knowledge work.1,7
The research program
Safety research is not a side program at Anthropic. Constitutional AI trains a model to critique and revise its behavior against written principles. Mechanistic interpretability work tries to identify internal features and circuits rather than judging a model only by its outputs. System cards publish capability and risk evaluations for major releases, while the Responsible Scaling Policy links stronger capabilities to additional deployment and security controls.2,6,5
The constraint is being tested
The difficult question is whether those practices remain binding as Anthropic competes at frontier scale. In 2026 the company revised its Responsible Scaling Policy and removed an earlier commitment to stop training when safeguards lagged, replacing it with risk reporting and roadmaps. Anthropic has also withheld a stronger internal cyber-capable system while continuing a fast commercial release cadence. The company is therefore a live test of whether safety institutions can constrain a successful frontier business from inside it.8,10
Company evidence
Epoch AI dataset ↗Reported estimates, not audited figures. Confidence labels and source links are preserved from the dataset.
Reporting and context
- Claude ConstitutionThe primary behavioral document behind Anthropic's most distinctive alignment method, useful for judging what the company means by controllability in practice.
- Dario Amodei: Anthropic CEO on Claude, AGI and the Future of HumanityA long-form account of the lab's scaling thesis, risk model, and the assumptions that shape its research and deployment strategy.
- How Anthropic's product team moves faster than anyone elseInside context on how Claude Code is built and how Anthropic's model, product, and engineering teams operate as one release system.
Notable contributions
- 01Constitutional AIAnthropic formalized a method for supervising models with written principles and model-generated critiques, reducing dependence on direct human labels for every behavior.2
- 02Responsible scaling commitmentsIts Responsible Scaling Policy made capability thresholds, deployment controls, and security requirements part of a public operating framework for a frontier lab.4,5
- 03Detailed frontier system cardsAnthropic made model-specific capability, alignment, cyber, and misuse evaluations a visible companion to major Claude releases.6
- 04Interpretability at production-model scaleThe company invested in mapping learned features inside large deployed models, connecting mechanistic interpretability research to concrete model behavior.3
Sources · 10+−
- 1CompanyAnthropic · primary ↗
- 2Claude's ConstitutionAnthropic · primary · May 9, 2023 ↗
- 3Mapping the Mind of a Large Language ModelAnthropic · paper · May 21, 2024 ↗
- 4Introducing Anthropic's Responsible Scaling PolicyAnthropic · primary · Sep 19, 2023 ↗
- 5Responsible Scaling Policy Version 3.0Anthropic · primary · Feb 24, 2026 ↗
- 6Model system cardsAnthropic · primary ↗
- 7Claude release notesAnthropic · primary ↗
- 8Anthropic Drops Flagship Safety PledgeTIME · independent · Feb 24, 2026 ↗
- 9Anthropic President Daniela Amodei: We must embrace both the positive side and the dark side of AILe Monde · independent · Jul 2, 2026 ↗
- 10Anthropic sees AI risks rising, no plan to release stronger Model 2Axios · independent · Aug 14, 2026 ↗
Company work
Built and published by Anthropic
Directly attributed work from the VibeLeaderboard catalog. This is separate from reporting and commentary about the lab.
Tools
26- Claude CodeAnthropic's agentic coding harness that runs in the terminal, understanding whole codebases and handling git workflows.Apr 14, 2026
- Agent SkillsAnthropic's public repository of modular, composable skill files that extend what Claude and other coding agents can do.Jun 16, 2026
- Claude Plugins (Official)Anthropic's official managed directory of vetted, high-quality plugins for extending Claude Code.Jun 16, 2026
- Claude for Financial ServicesOpen plugin suite from Anthropic that brings Claude into financial-services workflows.Jun 16, 2026
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- Knowledge Work PluginsAnthropic's open-source Claude plugins for knowledge workers, covering research, writing, and analysis skills.May 22, 2026
- Claude Code ActionGitHub Action that wires Claude Code into CI/CD to review PRs and run agent workflows from GitHub events.May 22, 2026
- Claude Agent SDK (Python)Anthropic's Python SDK exposing the agent loop behind Claude Code for building Claude-powered agents.May 22, 2026
- Claude for LegalAnthropic plugin suite for legal workflows: contract review, citation checking, deposition prep, and case research.May 22, 2026
- Anthropic Python SDKCalls the Claude API from Python, with support for streaming, tool use, batching, vision, and prompt caching.May 22, 2026
- Claude Plugins CommunityCommunity plugin marketplace where developers share extensions for Claude Cowork and Claude Code.May 26, 2026
- Claude Code Security ReviewGitHub Action from Anthropic that has Claude scan pull request diffs for security flaws and suggest fixes.May 22, 2026
- Anthropic Go SDKOfficial Go client for the Anthropic API, calling Claude from Go services with typed responses and streaming.May 26, 2026
- Claude Code Base ActionLow-level GitHub Action that runs Claude Code on pull requests and issues, powering Anthropic's claude-code-action.May 26, 2026
- Claude Agent SDK DemosAnthropic's demo collection for the Claude Agent SDK, with reference implementations of agents, tools, and workflows.May 22, 2026
- Claude Life Sciences MarketplaceMarketplace of life-sciences MCP servers for Claude Code, spanning bioinformatics, lab, and dataset connectors.May 26, 2026
- BuffaProtobuf implementation in Rust that adds editions support, JSON serialization, and zero-copy views.May 26, 2026
- Anthropic CLICommand-line tool from Anthropic for interacting with the Claude API, implemented in Go.May 26, 2026
- Anthropic Devcontainer FeaturesDev Container features that add the Claude Code CLI to any devcontainer-aware editor.May 26, 2026
- Connect-RustRust crate implementing the ConnectRPC protocol so HTTP-based RPC services can be built and served.May 26, 2026
- Anthropic Ruby SDKRuby applications reach the Anthropic Claude API through this officially maintained client library.May 26, 2026
- Anthropic Java SDKJava and Kotlin client library for the Anthropic Claude API.May 26, 2026
- Anthropic SDK for C#Official C# client library for the Anthropic API, letting .NET applications call Claude models.May 26, 2026
- Anthropic SDK for PHPWraps the Anthropic Claude API in an official client library aimed at PHP server applications.May 26, 2026
- Anthropic EvalsPublic suite of reference tasks and frameworks for benchmarking Claude and other language models.May 26, 2026
- Anthropic Agent SDK WorkshopOfficial Anthropic workshop with hands-on examples for building agents on the Claude Agent SDK.May 26, 2026
- Homebrew ClaudeOfficial Anthropic Homebrew tap for installing Claude command-line tools on macOS.May 26, 2026
Intel
23- Claude pushes the Riemann zero bound to 67.2 percentAnthropic set an unreleased research version of Claude on the Riemann hypothesis. It did not solve it, but it improved the known lower bound for the fraction of zeta-function zeros satisfying the hypothesis.Aug 10, 2026
- Anthropic opens Claude Academy: free Claude courses for every levelAnthropic opened Claude Academy: free, publicly accessible courses and tutorials spanning AI basics through advanced Claude usage, alongside a post explaining how the company thinks about teaching AI. No account tiering mentioned — the material is open to anyone.Aug 20, 2026
- Anthropic opens free Claude Team seats to 10,000 researchersAnthropic extends Claude Team to academic and nonprofit labs: standard seats free, premium seats with 5x usage limits at $15/month for one year. Principal investigators enroll and add their groups. Initially capped at 10,000 seats, with expansion signalled over the coming months.Aug 27, 2026
- Sonnet 5 introductory pricing becomes permanentAnthropic makes Claude Sonnet 5's introductory pricing permanent: $2 per million input tokens and $10 per million output, unchanged past the planned August 31 end date.Aug 10, 2026
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- Fable 5 biology fallbacks drop by about 85 percentAnthropic loosens Claude Fable 5's biology safeguards to cut false positives, reducing biology-related refusals by about 85% so the model can handle more everyday health and education questions.Aug 7, 2026
- Claude Security scanning moves to Mythos 5Enterprise code scanning now runs on Anthropic's strongest security model, in beta.Aug 21, 2026
- Claude in Chrome sessions follow you to other surfacesClaude in Chrome sessions now carry over to desktop, web and mobile, with conversations saved and skills and connectors working in the browser, starting with Max and Team.Aug 12, 2026
- Claude designed working protein binders for 14 of 15 targetsGiven a design prompt written by a human expert, Claude autonomously designed de novo protein binders against 14 of 15 targets. Adaptyv Bio and Twist Bioscience built and tested them, with 22 to 35 percent binding against a field baseline of 10 to 15 percent.Aug 18, 2026
- Gmail and Drive actions arrive in Claude's connectorsClaude can now send Gmail messages and manage Google Drive files through connectors, drafting and sending replies with a user-set approval gate. Available on all paid plans.Aug 18, 2026
- Claude's memory becomes one editable store across chat and CoworkAnthropic merged Claude's memory into a single store shared by chat and Cowork, surfaced in Settings as an editable list of topics. It updates on its own as you talk, honors an explicit "remember this", keeps sensitive categories opt-in, and ships on by default for Free, Pro and Max.Aug 25, 2026
- Cowork gets its own sandboxed browser, separate from yoursCowork's desktop app gains an Anthropic-controlled browser in a side panel that navigates and fills forms, running in a session kept separate from your own browser and logins. Rolling out over the next week to all paid plans; Claude in Chrome is now generally available.Aug 26, 2026
- Claude Cowork is now available on mobile and web for all paid plans.Anthropic has opened Claude Cowork to mobile and web across every paid plan, taking the agentic workspace beyond the desktop application.Aug 18, 2026
- In previous research, we found that Claude expresses over 3,000 values, like…Anthropic follows up its finding that Claude expresses over 3,000 values with an analysis of 300K anonymized conversations asking how those values vary between Claude models and across languages.Jul 13, 2026
- Anthropic put Claude in charge of aligning other models for 48 hoursAnthropic Fellows gave Claude 48 hours and one GPU to research, train and test alignment methods on small models across 10 failure modes like deception and sycophancy, with capabilities held constant. Gains held on held-out benchmarks and models 4.7x larger, and Sonnet 5 post-trained an early Opus 4Aug 28, 2026
- Anthropic hands outside researchers real Claude usage dataAnthropic opened privacy-preserved usage data to outside researchers for the first time. Stanford's SALT Lab, Oxford's HIP Lab and METR analyzed aggregated output from 250,000 Claude and Claude Code conversations; SALT found over half involved consequential tasks affecting others or hard to undo.Aug 26, 2026
- Claude ConstitutionThe foundational document describing Claude's values and behavior.May 26, 2026
- Discovering Cryptographic Weaknesses with ClaudeAnthropic researchers used their Claude Mythos Preview model to find two novel cryptanalytic results: an improved attack that halves the effective key strength of the post-quantum signature scheme HAWK, and a new attack on round-reduced AES that speeds up prior best attacks by 200-800x. Both attacks were largely autonomous, cost roughly $100,000 in API usage each, and don't affect deployed systems, but they demonstrate frontier AI models' growing ability to find mathematical flaws in cryptographic algorithms themselves rather than just implementation bugs.Jul 28, 2026
- Anthropic publishes its position on open-weights AI modelsAnthropic argues against a blanket ban on open-weight models while proposing targeted controls, including chip and export restrictions, anti-distillation measures, and safety testing.Jul 27, 2026
- The New Rules of Context Engineering for Claude 5 Generation ModelsAnthropic explains how it stripped over 80% of Claude Code's system prompt for newer Claude 5-generation models (Opus 5, Fable 5) with no measurable drop in coding evaluation performance. The post argues that older prompts, CLAUDE.md files, and skills often over-constrained the model with conflicting instructions, and that newer models can rely more on judgment plus new memory, artifact, and skill tooling instead of rigid rules — with a `/doctor` command in Claude Code to help rightsize a user's own context setup.Jul 24, 2026
- New Attacks on HAWK and AES Cryptographic SchemesAnthropic released papers describing new attacks on the HAWK lattice-based signature scheme and on AES, publishing the model's chain-of-thought for the AES work alongside them — a rare look at model-assisted cryptanalysis with the reasoning shown.Jul 28, 2026
- claude-agent-sdk-typescript v0.3.246Anthropic's TypeScript Agent SDK adds perTaskStopAffordance, letting interrupt() end only the current turn while background agents keep running, plus a costBasis field on model usage, host-managed model pricing, and a user_message_uuid tying replies and errors back to the message that triggered themAug 25, 2026
- claude-code v2.1.246Claude Code 2.1.246 adds an Auto mode tab to /permissions for reading and editing classifier rules, and warns at startup about Bash allow rules with a wildcard before the subcommand. Fixes cover background-session startup failures, fullscreen scrolling, and diffs containing very long single lines.Aug 25, 2026
- anthropic-sdk-python v1.1.0The Python SDK's 1.1 release exposes a beta `updates` thinking display mode, adds Organization API endpoints, fills in missing anthropic-beta values, and keeps the tool runner going across pause_turn rather than stopping mid-loop.Aug 26, 2026