Old vs New Claude

Old Claude answered questions in a chat window. New Claude works across files, apps, code, and long multi-step tasks.

Old Claude

A conversational assistant you prompted one message at a time.

New Claude

An AI work platform that can research, create, connect to tools, write and run code, and keep working toward a goal.

If you still use Claude like it is 2023, you are using a fraction of it.

March 14

Claude launches to selected users.

July 11

Claude 2, the first Claude available to the general public.

November 21

Claude 2.1 expands the context window to 200,000 tokens.

March 4

Claude 3 family: Haiku, Sonnet, and Opus.

June 20

Claude 3.5 Sonnet and Artifacts, with live previews of created content.

October 22

Updated Claude 3.5 Sonnet, Claude 3.5 Haiku, and computer use.

February

Claude 3.7 Sonnet and the first release of Claude Code.

May 22

Claude Opus 4 and Sonnet 4. Claude Code becomes generally available.

September 29

Claude Sonnet 4.5.

October

Claude Haiku 4.5, Skills, and Claude Code on the web.

November 24

Claude Opus 4.5.

January

Claude Cowork research preview for non-technical agentic work.

February

Claude Opus 4.6 and Sonnet 4.6.

March

Memory becomes available on all plans, including Free.

April

Claude Opus 4.7, Claude Design, and creative-tool connectors including Adobe and Blender.

June–July

Claude Fable 5, Sonnet 5, and Opus 5.

August 27

Claude in Chrome becomes generally available.

September

Fable 5.1, Opus 5.5, Sonnet 5.5, Claude Docs and Slides in beta, and Cowork merged into Claude chat.

Then

One model at a time, picked mostly by speed.

Now

Fable 5.1 as the most capable, Opus 5.5 as the flagship for coding and agents, Sonnet 5.5 for speed and cost, Haiku 4.5 for the fastest tasks.

Opus 5.5 adds effort levels from low to max, so you choose how hard it thinks.

Then

Pasted text and a few files.

Now

Projects with large knowledge bases, connectors to apps like Gmail, Google Drive, and Notion, and local files on desktop.

Then

Text answers.

Now

Artifacts, apps, Word, Excel, PowerPoint, and PDF files, Claude Docs, Claude Slides, and Claude Design prototypes.

Then

Code snippets you copied into your editor.

Now

Claude Code edits whole codebases, runs tests, opens pull requests, and runs in the terminal, IDEs, desktop, and web.

Then

Every chat started from zero.

Now

Memory carries useful context across chats on all plans, and Projects keep context for each area of work.

Then

Ask a question, get an answer.

Now

Give a goal, and Claude plans, uses tools, works through steps, and brings back finished work for review.

Then

Saved prompts in a notes app.

Now

Skills package workflows with instructions and scripts, and plugins bundle them for teams.

• Re-explaining context in every chat
• Copy-pasting long documents instead of using Projects
• Asking for code snippets instead of using Claude Code
• Saving prompts instead of building Skills
• Doing multi-step tasks one prompt at a time
• Ignoring connectors to your own tools

• Set up your profile and review memory
• Create Projects for each major area
• Connect the apps you use daily
• Give goals, not just questions
• Turn repeated work into Skills
• Use Claude Code for anything technical
• Verify important outputs

• Clear context still produces better answers
• Claude can still make mistakes
• Important facts still need checking
• Your judgment is still the final step

The tools got more powerful. The responsibility stayed with you.