Claude is Anthropic’s family of AI assistants and large language models. It began with the first public Claude release in March 2023 and has since expanded into model families for chat, coding, reasoning, agents, multimodal work, and enterprise workflows.
The latest major Claude model in this timeline is Claude Opus 4.7, released on April 16, 2026. It follows Claude Opus 4.6, Claude Sonnet 4.6, Claude Opus 4.5, Claude Sonnet 4.5, Claude Haiku 4.5, and the Claude 4 family.
This timeline tracks Claude’s journey from its inception to its current state, highlighting major releases and developments.
Last Updated: May 08, 2026
Claude Model Release Dates
| Model or Product | Release Date | Key Highlight |
|---|---|---|
| Claude Opus 4.7 | April 16, 2026 | Opus upgrade for advanced software engineering, complex multi-step tasks, vision, and professional work. |
| Claude Sonnet 4.6 | February 17, 2026 | Sonnet upgrade for coding, computer use, long-context reasoning, agent planning, knowledge work, and design. |
| Claude Opus 4.6 | February 5, 2026 | Opus upgrade with better planning, long-running agent reliability, and 1M context in beta. |
| Claude Opus 4.5 | November 24, 2025 | High-intelligence model for coding, agents, computer use, and enterprise work. |
| Claude Haiku 4.5 | October 16, 2025 | Lightweight Claude 4.5 model focused on speed and cost efficiency. |
| Claude Sonnet 4.5 | September 29, 2025 | Strong Sonnet model for agents, coding, and computer use. |
| Claude Opus 4.1 | August 5, 2025 | Opus 4 upgrade for coding precision and agentic tasks. |
| Claude Opus 4 and Claude Sonnet 4 | May 22, 2025 | Claude 4 generation for coding, advanced reasoning, and agent workflows. |
| Claude Code | February 24, 2025 | Agentic coding tool released as a research preview. |
| Claude 3.7 Sonnet | February 24, 2025 | Hybrid reasoning model with visible step-by-step reasoning controls for developers. |
| Claude 3.5 Haiku | October 22, 2024 | Faster, lower-cost model in the Claude 3.5 family. |
| Upgraded Claude 3.5 Sonnet | October 22, 2024 | Improved coding performance and public beta computer use through the API. |
| Claude 3.5 Sonnet | June 21, 2024 | First Claude 3.5 model, with stronger reasoning, coding, and visual performance. |
| Claude 3 | March 4, 2024 | Model family with Claude 3 Haiku, Claude 3 Sonnet, and Claude 3 Opus. |
| Claude 2.1 | November 21, 2023 | 200K context window, lower hallucination rates, system prompts, and early tool use. |
| Claude 2 | July 11, 2023 | Improved performance, longer responses, API access, and a public beta web experience. |
| Claude 1 | March 14, 2023 | First public Claude assistant from Anthropic. |
Latest Claude Model
The latest major model in this timeline is Claude Opus 4.7. It was released on April 16, 2026.
Claude Opus 4.7 is designed for complex coding, agent workflows, multimodal tasks, and professional knowledge work. Compared with Opus 4.6, it improves advanced software engineering performance, instruction following, high-resolution image understanding, and long multi-step task handling.
Claude Sonnet 4.6 remains important for users who need strong coding, agent, and knowledge-work performance at a lower cost than Opus-class models. Claude Haiku 4.5 remains the lightweight option in the current Claude 4.5 generation.
Claude Timeline
| Date | Milestone/Key Moment |
|---|---|
| May. 2026 | Claude Security: scans your codebase, validates findings, and suggests patches you can review and approve. |
| Apr. 2026 | Anthropic is adding several new connectors that are designed to make it easier to use Claude for creative work: Blender, Autodesk, Adobe, Ableton, Splice, and more. |
| Apr. 2026 | You can now connect the apps you use throughout your week, including AllTrails, Instacart, Audible, TripAdvisor, Intuit TurboTax, and more. |
| Apr. 2026 | Anthropic has removed Claude Code from its $20-a-month pro subscription. |
| Apr. 2026 | Claude for Word is now available on Pro and Max plans to use alongside Opus 4.7. |
| Apr. 2026 | Anthropic announced Claude Design, a new Anthropic Labs product that lets you collaborate with Claude to create polished visual work like designs, prototypes, slides, one-pagers, and more. |
| Apr. 2026 | Anthropic introduced Claude Opus 4.7, a notable improvement on Opus 4.6 in advanced software engineering, with particular gains on the most difficult tasks. |
| Apr. 2026 | Anthropic announced Routines in Claude Code, a Claude Code automation you configure once — including a prompt, repo, and connectors — and then run on a schedule, from an API call, or in response to an event. |
| Apr. 2026 | Anthropic redesigned Claude Code on desktop. You can now run multiple Claude sessions side by side from one window, with a new sidebar to manage them all. |
| Apr. 2026 | Anthropic introduced Claude for Word: Bring Claude natively into your Microsoft Word workflow. |
| Apr. 2026 | Anthropic announced an Advisor tool on the Claude Platform to make the advisor strategy a one-line change in your API call. |
| Apr. 2026 | Claude Cowork is now generally available on all paid plans. |
| Apr. 2026 | Anthropic introduced Claude Managed Agents, a suite of composable APIs for building and deploying cloud-hosted agents at scale. |
| Mar. 2026 | Anthropic introduced auto mode, a new permissions mode in Claude Code where Claude makes permission decisions on your behalf, with safeguards monitoring actions before they run. |
| Mar. 2026 | You can now enable Claude to use your computer to complete tasks. |
| Mar. 2026 | You can create interactive charts, diagrams, and visualizations in Claude. |
| Feb. 2026 | Anthropic introduced Claude Sonnet 4.6, a full upgrade of the model’s skills across coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Sonnet 4.6 also features a 1M token context window in beta. |
| Feb. 2026 | Anthropic announced Claude Opus 4.6. It plans more carefully, sustains agentic tasks for longer, can operate more reliably in larger codebases, and has better code review and debugging skills to catch its own mistakes. |
| Jan. 2026 | Web connectors are available on Claude, Claude Desktop, and Claude Mobile (iOS and Android) for users with paid plans (Pro, Max, Team, or Enterprise). Web connectors are also available to some users on free Claude plans. |
| Jan. 2026 | Anthropic introduced Cowork (Claude Code for the rest of your work). You give Claude access to a folder of your choosing on your computer. Claude can then read, edit, or create files in that folder. |
| Jan. 2026 | Anthropic announced Claude for Healthcare, a complementary set of tools and resources that allow healthcare providers, payers, and consumers to use Claude for medical purposes through HIPAA-ready products. |
| Nov. 2025 | Anthropic dropped Opus 4.5. Best in class for coding and agents, plus big improvements for spreadsheets and long-running chats. This is the update professional workflows needed. Learn More |
| Oct. 2025 | Claude for Excel has been released. Claude understands your entire workbook—from nested formulas to multiple tab dependencies. Get explanations with cell-level citations, and update assumptions while preserving formulas. Now in beta as a research preview. Learn More |
| Oct. 2025 | Claude Desktop is now generally available. New on Mac: Capture screenshots, click windows to share context, and press Caps Lock to talk to Claude aloud. Download Here |
| Oct. 2025 | Claude Code is now available right on the web for Pro/Max users. You can connect your GitHub, describe the routine fix or backend change you need, and Claude handles it in an isolated sandbox without you touching your terminal. Learn More |
| Oct. 2025 | Claude can now use Skills. Skills are packaged instructions that teach Claude your way of working. Learn More |
| Oct. 2025 | Anthropic released Claude Haiku 4.5: their latest small model. This model delivers Sonnet 4-level coding and agent performance for 1/3 the cost and twice the speed. View API Pricing |
| Sep. 2025 | Anthropic released Claude Sonnet 4.5: their best model in the world for agents, coding, and computer use. |
| Sep. 2025 | Anthropic launched a research preview of Imagine with Claude, where Claude generates software live. Seriously, nothing is pre-coded or set up. Try it Now |
| Sep. 2025 | Claude’s rolling out Memory to Team & Enterprise plans starting today. They’re also introducing incognito chats for all users. Learn More |
| Sep. 2025 | Anthropic just added the web fetch tool to the Claude API. Learn More |
| Sep. 2025 | Claude can now create and edit files. Learn More |
| Sep. 2025 | Claude can now reference past chats, so you can easily pick up from where you left off. |
| Aug. 2025 | Claude Code and new admin controls for business plans. Learn More |
| Aug. 2025 | Claude Sonnet 4 now supports 1M tokens of context. Learn More |
| Aug. 2025 | Anthropic just dropped Claude Opus 4.1, an upgrade to their most powerful model that’s now even better at coding and reasoning. Learn More |
| July. 2025 | You can now draft and send emails, messages, and calendar invites directly from the Claude app. |
| July. 2025 | Anthropic just rolled out Sub agents for Claude Code, which lets you create specialized AI assistants within Claude Code for specific tasks. Learn More |
| June. 2025 | Local MCP servers can now be installed with one click on Claude Desktop. |
| June. 2025 | Claude now lets you build, host, and share interactive AI-powered apps directly within the Claude app. Learn More |
| June. 2025 | Claude Code can now connect to remote MCP servers. |
| June. 2025 | Projects on Claude now support 10x more content. |
| June. 2025 | Claude Code is now available as part of the Pro plan. |
| May. 2025 | Web search is now available to all Claude users. |
| May. 2025 | Anthropic is rolling out voice mode in beta on mobile. |
| May. 2025 | Anthropic just launched Claude Opus 4 and Claude Sonnet 4, setting new standards for coding, advanced reasoning, and AI agents. Here’s what’s new with these models: 🚀 Claude Opus 4: This is their top-tier coding model, great for complex, long-running tasks and AI agent workflows. ✨ Claude Sonnet 4: A big improvement over Sonnet 3.7, it’s better at coding and reasoning, and follows instructions more precisely. 🧠 Extended Thinking with Tool Use (beta): Both models can now use tools while they “think” through a problem, helping them get better answers. 💾 New Model Capabilities: With local file access, these models can now remember key facts from conversations in “memory files,” so they learn over time. They also support parallel tool use and follow instructions better. 🛠️ New API Capabilities: Anthropic is adding four new tools to their API for developers to build more powerful AI agents: a code execution tool, MCP connector, Files API, and prompt caching for up to an hour. ⚡ Priority Tier: You can now get guaranteed API capacity for when you need it most. |
| May. 2025 | Research is now available on mobile. Claude can research across the web and Google Workspace, delivering comprehensive reports complete with citations from hundreds of sources. |
| May. 2025 | Anthropic announced Web Search API. Developers can now augment Claude’s comprehensive knowledge with up-to-date data. Blog Post |
| May. 2025 | Anthropic announced Integrations, a new way to connect your apps and tools to Claude. They’re also expanding Claude’s Research capabilities with an advanced mode that searches the web, your Google Workspace, and now your Integrations too. Blog Post |
| Apr. 2025 | Anthropic introduced two new capabilities — Research and a Google Workspace integration that connects your email, calendar, and documents to Claude. With Research, Claude can search across both your internal work context and the web to help you make decisions and take action faster than before. Blog Post |
| Apr. 2025 | Anthropic just introduced the Max plan—designed for those who collaborate with Claude extensively and need expanded access for their most important work. Blog Post |
| Apr. 2025 | Anthropic released a specialized version of Claude tailored for higher education institutions. Source |
| Mar. 2025 | You can now use Claude to search the internet to provide more up-to-date and relevant responses. Source |
| Feb. 2025 | Anthropic introduced Claude Code, the first agentic coding tool—in a limited research preview. Source |
| Feb. 2025 | Anthropic announced Claude 3.7 Sonnet, their most intelligent model to date and the first hybrid reasoning model on the market. Source |
| Nov. 2024 | Now you can tailor Claude’s responses to your unique needs and workflows. Source |
| Nov. 2024 | Anthropic introduced the Model Context Protocol (MCP), a new standard for connecting AI assistants to the systems where data lives, including content repositories, business tools, and development environments. Its aim is to help frontier models produce better, more relevant responses. Source |
| Nov. 2024 | You can now directly add content from Google Docs to chats and projects. Source |
| Nov. 2024 | Claude now has the ability to improve prompts and manage examples directly in the Anthropic Console. Source |
| Nov. 2024 | Claude 3.5 Haiku is now available on Anthropic API, Amazon Bedrock, and Google Cloud’s Vertex AI. Source |
| Nov. 2024 | Anthropic’s Claude 3.5 Sonnet can analyze PDFs and images inside them. Source |
| Oct. 2024 | Anthropic released Claude for Desktop. Download Here |
| Oct. 2024 | Anthropic introduced the analysis tool, a new built-in feature for Claude.ai that enables Claude to write and run JavaScript code. Source |
| Oct. 2024 | Anthropic announced an upgraded Claude 3.5 Sonnet, which delivers across-the-board improvements over its predecessor, with particularly significant gains in coding—an area where it already led the field. Source |
| Oct. 2024 | Anthropic announced Claude 3.5 Haiku, the next generation of their fastest model. Source |
| Oct. 2024 | Anthropic launched Message Batches API, allowing developers to submit up to 10,000 queries for async processing in under 24 hours at a 50% discount compared to standard API calls. (Link) |
| Sep. 2024 | Now your entire organization can collaborate securely with Claude—with no training on chats or files. (Link) |
| Aug. 2024 | Artifacts are now generally available. (Link) |
| Aug. 2024 | Anthropic has publicly released the system prompts for its Claude AI models, offering unprecedented insight into the inner workings of these advanced language systems. (Link) |
| Aug. 2024 | Claude’s added a new screenshot button that allows you to quickly capture images from anywhere on your screen and include them in your prompt. (Link) |
| Aug. 2024 | Anthropic announced prompt caching on Claude API, which enables developers to cache frequently used context between API calls. (Link) |
| Jul. 2024 | Anthropic and Menlo Ventures Launch $100 Million Fund to Fuel AI Innovation. (Link) |
| Jul. 2024 | The new Claude Android app brings the power of Claude—including the most powerful model, Claude 3.5 Sonnet—to Android users. (Link) |
| Jun. 2024 | Claude 3.5 Sonnet launches—the first release in the forthcoming Claude 3.5 model family. (Link) |
| May. 2024 | Tool use, which enables Claude to interact with external tools and APIs, is now generally available across the entire Claude 3 model family on the Anthropic Messages API, Amazon Bedrock, and Google Cloud’s Vertex AI. (Link) |
| Mar. 2024 | Claude 3 family releases, featuring three models: Haiku, Sonnet, and Opus. Each model offers different strengths in speed, intelligence, and task complexity. (Link) |
| Nov. 2023 | Anthropic introduces Claude 2.1. Claude 2.1 delivers advancements in key capabilities for enterprises—including an industry-leading 200K token context window, significant reductions in rates of model hallucination, system prompts, and a new beta feature: tool use. (Link) |
| Sep. 2023 | Anthropic introduces a paid plan for Claude.ai chat experience. (Link) |
| Aug. 2023 | Anthropic introduces Claude Instant 1.2, a faster, lower-priced yet still very capable model, which can handle a range of tasks including casual dialogue, text analysis, summarization, and document comprehension. (Link) |
| Jul. 2023 | Anthropic introduces Claude 2, which has improved performance and longer responses and can be accessed via API. (Link) |
| May. 2023 | Anthropic Raises $450 Million in Series C Funding to Scale Reliable AI Products. (Link) |
| May. 2023 | Claude’s context window has extended from 9K to 100K tokens. (Link) |
| Mar. 2023 | Anthropic introduces Claude, a next-generation AI assistant based on Anthropic’s research into training helpful, honest, and harmless AI systems. (Link) |
| Feb. 2023 | Anthropic Raises Series B to Build Steerable, Interpretable, Robust AI Systems. (Link) |
| May. 2021 | Anthropic raises $124 million to build more reliable, general AI systems. (Link) |
Claude Generations Explained
Claude 1 established Anthropic’s assistant experience in 2023. It focused on conversation, writing, summarization, Q&A, coding, and text processing.
Claude 2 expanded the model’s usefulness with longer responses, stronger reasoning, better coding performance, API access, and a larger context window. Claude 2.1 then moved the product toward enterprise workflows with a 200K context window, system prompts, and early tool use.
Claude 3 introduced a clear model family: Haiku for speed, Sonnet for balanced performance, and Opus for the most complex tasks. This generation also brought stronger vision capabilities and better accuracy.
Claude 3.5 improved the Sonnet and Haiku lines. Claude 3.5 Sonnet became a major model for coding, reasoning, visual tasks, and computer use. Claude 3.5 Haiku added a faster option for lower-cost workloads.
Claude 3.7 Sonnet introduced hybrid reasoning. It helped position Claude for tasks where users wanted stronger reasoning behavior and more control over the model’s thinking budget.
Claude 4 moved Claude deeper into coding, agents, advanced reasoning, and tool-based work. Claude Opus 4 and Claude Sonnet 4 became the foundation for later 4.x model upgrades.
Claude 4.5 and 4.6 refined the model family for real-world workflows. Sonnet 4.5 and 4.6 targeted agents, coding, computer use, and knowledge work. Haiku 4.5 focused on fast and lower-cost responses. Opus 4.5 and 4.6 focused on difficult coding tasks, long-running work, planning, debugging, and enterprise use.
Claude Opus 4.7 continued the Opus line with better advanced software engineering, stronger high-resolution vision, and better handling of complex multi-step work.
Major Product Milestones
Claude is no longer only a chatbot. The product timeline shows a shift toward work surfaces, developer tools, and agent workflows.
Claude Code turned Claude into a coding agent that can work with repositories, run tasks, and help with implementation work. Later updates added remote MCP server support, web access, desktop improvements, routines, and broader plan availability.
The Model Context Protocol became one of Anthropic’s most important ecosystem moves. MCP gives AI assistants a standard way to connect with tools, files, services, and business systems. It also supports the broader agent workflow around Claude Code and other AI coding tools.
Claude Desktop, Claude for Excel, Claude for Word, web connectors, and Claude Cowork moved Claude closer to everyday work. These releases show Anthropic’s focus on document work, spreadsheets, local files, business tools, and repeatable workflows.
Claude Design, Managed Agents, and Routines show the 2026 direction of the product. Claude is moving toward structured agent work, visual creation, scheduled automation, and enterprise-grade deployment.
How Claude Changed Over Time
Claude’s early releases focused on safer chat, longer context, and general assistant tasks. The middle period focused on model families, better accuracy, vision, tool use, and stronger coding. The recent releases focus on agents, computer use, long-context workflows, enterprise integrations, and product-specific assistants.
The clearest trend is that Claude has moved from single-turn chat toward delegated work. Newer Claude releases are built for tasks that involve files, tools, codebases, apps, images, documents, and long-running plans.
See Also:
- Timeline Of Meta AI
- Timeline Of Google AI
- Timeline Of ChatGPT & OpenAI
- Claude API Pricing
- View the Anthropic Claude Timeline on GitHub
