July 7th, 2026
Two new Claude models: Sonnet 5 and Fable 5 — July 7, 2026 Update
Anthropic just shipped two new Claude models. Both are live in Swiftask right now, on every plan, at no extra cost.
Which one to pick?
Both share the same specs:
992,000 token context window, analyze entire codebases or 500-page documents in one shot
120,000 token output limit, long-form outputs without truncation
Available on Pro, Team Starter, Team Growth, and Custom plans
Why upgrade from Sonnet 4.6 to Sonnet 5?
Sonnet 5 replaces Sonnet 4.6 as the recommended default for most tasks. Same price bracket, stronger reasoning, larger context (992K vs previous limits). If you're using Sonnet 4.6 today, you can freely switch to Sonnet 5 if you want it, that is a one-click win.
Sonnet 4.6 stays available: no forced migration, no breaking changes.
How to switch
In Chat:
Open Chat → click the model selector at the top of the input
Under "Anthropic - Claude", pick Sonnet 5 or Fable 5
Start typing
In Agents:
Open your agent → Agent Configuration → Model selection
Pick the new model → Save
As workspace default: Workspace administration → Settings → Advanced → Default Chat AI → select the model → Update.
How to test in 2 minutes
Sonnet 5: Drop a 50-page PDF and ask: "Extract the 10 most important insights with page references." Compare speed and accuracy vs. your current default.
Fable 5: Give it a complex reasoning task: "Analyze these three business scenarios and recommend the best one with tradeoffs." Compare output depth vs. Sonnet 5.
Our recommendation
Use Sonnet 5 for 80% of your workflows: chat, agents, automations. Reserve Fable 5 for tasks where output quality justifies the cost: legal analysis, strategic planning, technical audits.
Learn more about choosing the right model and credit consumption.
Open Chat now and try Sonnet 5 on your next task.
This thursday, join our webinar on building a fleet of cold-emailing agents to save time on your prospecting.