# Claude timeline

entity: /record/claude.md  
id: ent_claude  


## 2023

- 2023-03-14 | available_in | chat interface and API | valid | [clm_264EDC195DA2](/claim/clm_264EDC195DA2.md)
- 2023-03-14 | launched | Claude AI assistant launched | valid | [clm_32EF909E8AFA](/claim/clm_32EF909E8AFA.md)

## undated

- undated | website | https://www.anthropic.com/claude | unverified | [clm_7A96E2E4C224](/claim/clm_7A96E2E4C224.md)
- undated | owned_by | [Anthropic](/record/anthropic.md) | unverified | [clm_99C32A4C4A63](/claim/clm_99C32A4C4A63.md)
- undated | developer | [Anthropic](/record/anthropic.md) | unverified | [clm_C674B6DFCB1A](/claim/clm_C674B6DFCB1A.md)
- undated | website | https://claude.ai | unverified | [clm_F3861B302F0A](/claim/clm_F3861B302F0A.md)

## 2023

- 2023-05-11 to 2023-11-21 | context_window | 100K tokens (up from 9K) | superseded | [clm_D41773B677B0](/claim/clm_D41773B677B0.md)
- 2023-08-09 | released | [Claude Instant 1.2](/record/claude-instant-1-2.md) | valid | [clm_F7DF377AE70F](/claim/clm_F7DF377AE70F.md)
- 2023-09-14 | partnership | Boston Consulting Group | valid | [clm_8D3C5275467A](/claim/clm_8D3C5275467A.md)
- 2023-11-21 | context_window | 200K tokens | valid | [clm_073FE2E065DF](/claim/clm_073FE2E065DF.md)
- 2023-11-21 | released | Claude 2.1 | valid | [clm_3D56C13ECCAC](/claim/clm_3D56C13ECCAC.md)
- 2023-11-21 | feature_added | system prompts | valid | [clm_F6DFA6A1A9B3](/claim/clm_F6DFA6A1A9B3.md)
- 2023-11-21 | feature_added | beta tool use | valid | [clm_F88E917607CA](/claim/clm_F88E917607CA.md)

## 2024

- 2024-03-04 | released | Claude 3 model family (Haiku, Sonnet, Opus) | valid | [clm_EBA2C3F6F174](/claim/clm_EBA2C3F6F174.md)
- 2024-03-13 | released | Claude 3 Haiku | valid | [clm_8B3DC2C25095](/claim/clm_8B3DC2C25095.md)
- 2024-05-14 | available_in | European Union | valid | [clm_2DF6D069CC53](/claim/clm_2DF6D069CC53.md)
- 2024-06-21 | released | Claude 3.5 Sonnet | valid | [clm_B6E3D442D50F](/claim/clm_B6E3D442D50F.md)
- 2024-06-25 | available_in | Claude Pro and Team plans | valid | [clm_B91450742F17](/claim/clm_B91450742F17.md)
- 2024-06-25 | feature_added | Projects for organizing chats and knowledge | valid | [clm_F4868516DA7A](/claim/clm_F4868516DA7A.md)
- 2024-09-03 | partnership | Salesforce Einstein 1 Studio integration via Amazon Bedrock | valid | [clm_F11CABAC7A9C](/claim/clm_F11CABAC7A9C.md)

## 2025

- 2025-02-24 | released | first hybrid reasoning model generally available | valid | [clm_8DFBB6E6F9CA](/claim/clm_8DFBB6E6F9CA.md)
- 2025-02-24 | released | Claude 3.7 Sonnet | valid | [clm_9AC6549D52BB](/claim/clm_9AC6549D52BB.md)
- 2025-06-06 | available_in | classified US national security environments | valid | [clm_4FB5507839A3](/claim/clm_4FB5507839A3.md)
- 2025-06-06 | launched | Claude Gov models for US national security customers | valid | [clm_A7341DF4F8CD](/claim/clm_A7341DF4F8CD.md)
- 2025-06-11 | available_in | AWS GovCloud via Amazon Bedrock for FedRAMP High workloads | valid | [clm_B72B1CCBED6C](/claim/clm_B72B1CCBED6C.md)
- 2025-06-11 | policy_changed | approved for DoD IL4/5 workloads via Amazon Bedrock | valid | [clm_F02D2292CF72](/claim/clm_F02D2292CF72.md)
- 2025-08-05 to 2025-08-12 | price | pre-negotiated federal pricing via GSA schedule | superseded | [clm_208E016CB882](/claim/clm_208E016CB882.md)
- 2025-08-05 | released | Claude Opus 4.1 | valid | [clm_277A075F5043](/claim/clm_277A075F5043.md)
- 2025-08-05 | available_in | US federal government via GSA schedule | valid | [clm_F31DFB44A8F1](/claim/clm_F31DFB44A8F1.md)
- 2025-08-12 to 2025-11-24 | price | $1 for US government access across all three branches | superseded | [clm_A0257F5CE178](/claim/clm_A0257F5CE178.md)
- 2025-08-12 | available_in | US federal government, all three branches (Claude for Enterprise and Claude for Government) | valid | [clm_A37E3FA60851](/claim/clm_A37E3FA60851.md)
- 2025-08-21 | feature_added | nuclear conversation classifier | valid | [clm_503FF3A0A7C1](/claim/clm_503FF3A0A7C1.md)
- 2025-08-27 | launched | National Security and Public Sector Advisory Council | valid | [clm_383314553002](/claim/clm_383314553002.md)
- 2025-08-28 | policy_changed | Opt-in use of conversations for model training | valid | [clm_3F32A1DBCB6C](/claim/clm_3F32A1DBCB6C.md)
- 2025-08-28 | policy_changed | Five-year data retention for opted-in users | valid | [clm_A8A7FC2DEFC4](/claim/clm_A8A7FC2DEFC4.md)
- 2025-09-12 | policy_changed | Safeguards strengthened after government red-team testing of Constitutional Classifiers on Claude Opus 4 and 4.1 | valid | [clm_86A60A3A5548](/claim/clm_86A60A3A5548.md)
- 2025-09-29 | feature_added | checkpoints for autonomous development in Claude Code | valid | [clm_7AE08E6C85AC](/claim/clm_7AE08E6C85AC.md)
- 2025-09-29 | feature_added | native VS Code extension for Claude Code | valid | [clm_C300A63F30F7](/claim/clm_C300A63F30F7.md)
- 2025-09-29 | released | Claude Sonnet 4.5 | valid | [clm_F466EEFBB8E7](/claim/clm_F466EEFBB8E7.md)
- 2025-10-06 | users | 470,000 people | valid | [clm_002FD4845881](/claim/clm_002FD4845881.md)
- 2025-10-06 | available_in | Deloitte global network | valid | [clm_9705FFB8AF28](/claim/clm_9705FFB8AF28.md)
- 2025-10-06 | customer | [Deloitte](/record/deloitte.md) | valid | [clm_F1631711E1CE](/claim/clm_F1631711E1CE.md)
- 2025-10-14 | customer | Salesforce Agentforce | valid | [clm_381731ED7EA5](/claim/clm_381731ED7EA5.md)
- 2025-10-14 | partnership | [Salesforce](/record/salesforce.md) | valid | [clm_946056592B42](/claim/clm_946056592B42.md)
- 2025-11-04 | customer | [Cognizant](/record/cognizant.md) | valid | [clm_92B11990ACAF](/claim/clm_92B11990ACAF.md)
- 2025-11-04 | customer | Cognizant workforce of 350,000 employees | valid | [clm_CF63FBF14112](/claim/clm_CF63FBF14112.md)
- 2025-11-24 | released | Claude Opus 4.5 | valid | [clm_6D74521EEDE1](/claim/clm_6D74521EEDE1.md)
- 2025-11-24 to 2025-12-02 | price | lower pricing than prior Opus models | superseded | [clm_EFA6929FEE7A](/claim/clm_EFA6929FEE7A.md)
- 2025-12-02 | price | discounted rates for nonprofits | valid | [clm_0651E0151411](/claim/clm_0651E0151411.md)
- 2025-12-02 | launched | Claude for Nonprofits | valid | [clm_D404E516912B](/claim/clm_D404E516912B.md)
- 2025-12-03 | partnership | [Snowflake](/record/snowflake.md) | valid | [clm_373DCE560D8F](/claim/clm_373DCE560D8F.md)
- 2025-12-03 | available_in | Snowflake customers | valid | [clm_AFD46B4D652C](/claim/clm_AFD46B4D652C.md)
- 2025-12-09 | customer | Accenture Anthropic Business Group | valid | [clm_6210CA81709D](/claim/clm_6210CA81709D.md)
- 2025-12-18 | customer | US Department of Energy national laboratories | valid | [clm_6285FA0FABEE](/claim/clm_6285FA0FABEE.md)

## 2026

- 2026-01-11 | launched | Claude for Healthcare | valid | [clm_57999C80DDD0](/claim/clm_57999C80DDD0.md)
- 2026-01-11 | feature_added | HIPAA-ready infrastructure | valid | [clm_9D12EF68B133](/claim/clm_9D12EF68B133.md)
- 2026-01-11 | feature_added | life sciences tools and connectors | valid | [clm_D31A6793ABBF](/claim/clm_D31A6793ABBF.md)
- 2026-01-22 | policy_changed | new constitution | valid | [clm_619A8D497C78](/claim/clm_619A8D497C78.md)
- 2026-01-28 | customer | ServiceNow Build Agent default model | valid | [clm_0B889BC02739](/claim/clm_0B889BC02739.md)
- 2026-01-28 | employees | 29,000 ServiceNow employees using Claude | valid | [clm_56AA60335885](/claim/clm_56AA60335885.md)
- 2026-01-28 | customer | [ServiceNow](/record/servicenow.md) | valid | [clm_CFD055608C9A](/claim/clm_CFD055608C9A.md)
- 2026-02-03 | feature_added | Claude Agent SDK in Xcode | valid | [clm_63E6B92E0138](/claim/clm_63E6B92E0138.md)
- 2026-02-03 | partnership | Apple Xcode 26.3 | valid | [clm_8D58750695DE](/claim/clm_8D58750695DE.md)
- 2026-02-04 | policy_changed | Remains ad-free | valid | [clm_5328FDAFE1AB](/claim/clm_5328FDAFE1AB.md)
- 2026-02-13 | customer | CodePath students access | valid | [clm_F89D37EFEAA0](/claim/clm_F89D37EFEAA0.md)
- 2026-02-17 | released | Claude Sonnet 4.6 | valid | [clm_0293253E819B](/claim/clm_0293253E819B.md)
- 2026-02-17 | feature_added | Upgraded coding, computer use, reasoning, agent planning, knowledge work and design skills | valid | [clm_D56D4FCCE885](/claim/clm_D56D4FCCE885.md)
- 2026-02-20 | feature_added | Claude Code Security | valid | [clm_CE6849B5D927](/claim/clm_CE6849B5D927.md)
- 2026-02-23 | distillation_attack_detected | Coordinated distillation attacks using about 24,000 fraudulent accounts to extract Claude's capabilities | valid | [clm_87C79A532E4B](/claim/clm_87C79A532E4B.md)
- 2026-03-06 | vulnerabilities_found | 14 high-severity Firefox vulnerabilities found | valid | [clm_59F1B78F8417](/claim/clm_59F1B78F8417.md)
- 2026-03-06 | vulnerabilities_found | 22 Firefox vulnerabilities found in two weeks | valid | [clm_F4CF802F611C](/claim/clm_F4CF802F611C.md)
- 2026-04-17 | launched | Claude Design (Anthropic Labs) | valid | [clm_C31775DAB772](/claim/clm_C31775DAB772.md)
- 2026-04-24 | policy_changed | Updated election-related request handling ahead of 2026 US midterms | valid | [clm_2FBD720F701F](/claim/clm_2FBD720F701F.md)
- 2026-04-24 | customer | NEC | valid | [clm_AE5D932EFF4C](/claim/clm_AE5D932EFF4C.md)
- 2026-04-24 | customer | NEC 30,000 employees | valid | [clm_EAB0AEEE0C3A](/claim/clm_EAB0AEEE0C3A.md)
- 2026-05-05 | feature_added | New connectors for financial services and insurance | valid | [clm_2D7484445EBF](/claim/clm_2D7484445EBF.md)
- 2026-05-05 | feature_added | Microsoft 365 integrations for financial services | valid | [clm_B4EEF24EE95C](/claim/clm_B4EEF24EE95C.md)
- 2026-05-05 | feature_added | MCP app for financial services and insurance | valid | [clm_C8F393DE09BB](/claim/clm_C8F393DE09BB.md)
- 2026-05-05 | feature_added | Ten new Cowork and Claude Code plugins for financial services | valid | [clm_F0D62052FA00](/claim/clm_F0D62052FA00.md)
- 2026-05-13 | launched | Claude for Small Business | valid | [clm_94967D399476](/claim/clm_94967D399476.md)
- 2026-05-14 | customer | PwC | valid | [clm_FA73E91DCBE7](/claim/clm_FA73E91DCBE7.md)
- 2026-05-19 | customer | KPMG | valid | [clm_4F2C2763AB14](/claim/clm_4F2C2763AB14.md)
- 2026-05-19 | available_in | 276,000+ KPMG employees | valid | [clm_695D682626C5](/claim/clm_695D682626C5.md)
- 2026-06-03 | partnership | Claude Partner Network services track and Partner Hub launched | valid | [clm_45825E710F3A](/claim/clm_45825E710F3A.md)
- 2026-07-01 | policy_changed | updated cyber safeguards and new jailbreak framework | valid | [clm_86815BB05B3C](/claim/clm_86815BB05B3C.md)
- 2026-07-01 | redeployed | Claude Fable 5 redeployed with updated cyber safeguards | valid | [clm_C1D43BEF50C9](/claim/clm_C1D43BEF50C9.md)
- 2026-07-09 | customer | UST | valid | [clm_6A16ACD9A62D](/claim/clm_6A16ACD9A62D.md)
- 2026-07-09 | partnership | UST | valid | [clm_98E520D0F0A5](/claim/clm_98E520D0F0A5.md)
- 2026-08-07 | policy_changed | Updated biology safeguards for Claude Fable 5 to substantially reduce fallbacks | valid | [clm_B7EEDB817F7F](/claim/clm_B7EEDB817F7F.md)
- 2026-09-28 | available_in | Amazon Bedrock | unverified | [clm_81CAC5B72D83](/claim/clm_81CAC5B72D83.md)
- 2026-10-13 | model_release | Claude Haiku 5.5 | unverified | [clm_394D35099521](/claim/clm_394D35099521.md)
- 2026-10-22 | launched | Anthropic-managed deployment option | valid | [clm_563187536A96](/claim/clm_563187536A96.md)
- 2026-10-22 | available_in | Google Cloud | valid | [clm_5C594CF227C6](/claim/clm_5C594CF227C6.md)
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