2023
The Beginning · Constitutional AI · Claude 1 & 2
Mar 20231 launch
Claude 1
Mar 2023 · First public release
ModelJul 20231 launch
Claude 2
Jul 2023 · 100K context, improved reasoning
ModelNov 20233 launches
Claude 2.1
Nov 2023 · 200K context, 2x less hallucinations
ModelTool Use Beta
Nov 2023 · API calls, web search beta
APIConstitutional AI Published
Nov 2023 · Safety training methodology
Safety
2024
Claude 3 Family · Multimodal · Computer Use
Mar 20242 launches
Claude 3 Family
Mar 2024 · Haiku, Sonnet, Opus — multimodal
ModelAWS Bedrock + Vertex AI
Mar 2024 · First cloud deployments
EnterpriseJun 20242 launches
Artifacts
Jun 2024 · Generate code, docs, designs inline
PlatformProjects
Jun 2024 · Shared context across chats (paid)
PlatformOct 20244 launches
Claude 3.5 Sonnet (upgraded)
Oct 22, 2024 · Best coding model
ModelClaude 3.5 Haiku
Oct 22, 2024 · Fast, affordable
ModelComputer Use (Beta)
Oct 2024 · Control desktops with AI
PlatformModel Safety Level 3
Oct 2024 · ASL-3 safety rating introduced
Safety
2025
Claude 4 · Claude Code · Agentic Era Begins
Feb 20252 launches
Claude Code (Preview)
Feb 2025 · Agentic CLI coding tool
Claude CodeClaude 3.7 Sonnet
Feb 2025 · Extended thinking, 77.2% SWE-bench
ModelMar 20251 launch
Web Search
Mar 2025 · Live web access (paid US)
PlatformApr 20251 launch
Claude Max Plan
Apr 2025 · Higher usage + early features
PlatformMay 20254 launches
Claude Sonnet 4
May 22, 2025 · 200K context, code execution
ModelClaude Opus 4
May 22, 2025 · ASL-3, 14.5hr task horizon
ModelClaude Code GA
May 2025 · Generally available
Claude CodeFiles API + MCP Connectors
May 2025 · File uploads, tool integrations
APIAug 20252 launches
Claude for Chrome
Aug 2025 · Browser control via Claude Code
Platform1M Token Context (Beta)
Aug 2025 · Sonnet 4 public beta
ModelSep 20251 launch
Claude Sonnet 4.5
Sep 2025 · Best complex agents + coding
ModelOct 20253 launches
Claude Code Web + iOS
Oct 2025 · Web version + mobile app
Claude CodeAgent Skills
Oct 2025 · PPTX, XLSX, DOCX, PDF workflows
PlatformWeb Search Free Tier
Oct 2025 · Free users get web access
Free TierNov 20252 launches
Claude Code $1B Revenue
Nov 2025 · Run-rate milestone
PlatformBun Acquisition
Nov 2025 · JS runtime for Claude Code infra
PlatformDec 20252 launches
Cowork Preview (macOS)
Dec 2025 · Local files + MCP via VM
Co-workHIPAA Enterprise Plans
Dec 2025 · PHI-ready for healthcare
Enterprise
2026
Cowork · Claude 4.6 · 1M Context · Marketplace
Jan 20264 launches
Claude Cowork
Late Jan · Research preview
Co-workClaude for Healthcare
Jan 11 · HIPAA, CMS, FHIR connectors
PlatformEconomic Index Report
Jan 15 · 5 economic primitives
PlatformAI Literacy Collective
Jan 21 · 63 countries, 100K teachers
PlatformFeb 202612 launches
Claude Opus 4.6
Feb 5 · 1M context, Finance #1
ModelClaude in PowerPoint
Feb 5 · Office add-in
IntegrationClaude Sonnet 4.6
Feb 17 · 1M context beta
ModelScheduled Tasks in Cowork
Feb 17 · Recurring + on-demand
Co-workClaude Code Security
Feb 20 · 500+ vulns found in OSS
Claude CodePlugin Marketplace
Feb 24 · Team & Enterprise
Co-workExcel Upgrade
Feb · Pivot tables + Opus 4.6
IntegrationClaude Code Remote Control
Feb
Claude CodeConnectors on Free Tier
Feb
Free TierSelf-Serve Enterprise
Feb · No sales call needed
EnterpriseProjects on Free Tier
Feb
Free TierEnterprise Analytics API
Feb · Programmatic usage data
APIMar 202612 launches
Claude Memory Free
Mar
Free TierClaude Haiku 4.5
Mar · Fastest Haiku ever
ModelCode Review
Mar 9 · AI PR reviewer
Claude CodeClaude Marketplace
Mar
PlatformClaude Ambassadors
Mar
PlatformSkills for Excel & Slides
Mar · Agent Skills
IntegrationCharts & Diagrams in Chat
Mar · Inline visualizations
Platform1M Context Window GA
Mar · Opus + Sonnet 4.6
ModelDispatch for Cowork
Mar
Co-workClaude Code Channels
Mar · MCP permission relay
Claude CodeCo-work Projects
Mar
Co-workCompaction API (Beta)
Mar · Infinite conversations
API