Models & Labs
Claude Sonnet 5: Enhanced Agentic AI Model
Anthropichigh confidence
Why it matters
- →Claude Sonnet 5 offers advanced agentic capabilities at a lower cost, making it accessible for more developers.
- →Improved safety features reduce undesirable behaviors, enhancing trust in autonomous AI operations.
- →The model's ability to handle complex tasks efficiently can significantly boost productivity in software engineering and other fields.
Anthropic has introduced Claude Sonnet 5, an advanced AI model designed to enhance agentic capabilities such as planning and tool use. This model offers performance close to the Opus 4.8 but at a lower cost, making it an attractive option for developers. Safety assessments indicate improved behavior over previous models, with reduced rates of undesirable actions. Available across all plans, Claude Sonnet 5 is priced at $2 per million input tokens and $10 per million output tokens until August 31, 2026, after which prices will increase. This release provides developers with a powerful tool for executing complex tasks efficiently.
Read originalThe story around this
Earlier coverage that leads up to this article, and what followed. Lines connect each piece to the closest one after it, converging here.
How we got here
- 1AI Agents Revolutionize Coding with Claude Code
WIRED AI · May 26, 2026 · Related
- 2Anthropic Releases Claude Opus 4.8
Anthropic · May 28, 2026 · Related
- 3Claude Opus 4.8 Review Highlights New Features
Skill Leap AI · May 28, 2026 · Related
- 4Claude Opus 4.8 Model Released
Duncan Rogoff · May 29, 2026 · Same story
- 5Claude Opus 4.8 Enables Rapid AI OS Creation
Duncan Rogoff · May 31, 2026 · Related
- 6Claude Fable 5 Capabilities Explored
The AI Advantage · June 12, 2026 · Related
- 7Benchmarking Open Models for Agentic Use
Hugging Face Blog · June 18, 2026 · Related
- 8Agentic AI Loops: The Next Big Step?
TechCrunch AI · June 22, 2026 · Related
What happened next
- 9Claude Code v2.1.197 Introduces Sonnet 5 Model
Claude Code Releases · July 2, 2026 · Same story
- 10Anthropic Launches Claude Opus 5 Model
Anthropic · July 24, 2026 · Related
- 11Claude Sonnet 5.5 arrives in GitHub Copilot
GitHub Changelog · September 28, 2026 · Related
- 12Anthropic Sonnet 5.5 narrows gap with Opus at half price
The Rundown AI · September 29, 2026 · Related
- 13Claude Code v2.1.284 adds Sonnet 5.5
Claude Code Releases · September 30, 2026 · Same story
Follow this story
Open the full story →Claude Sonnet 5: Enhanced Agentic AI Model
9 developments
- Jun 30 · Anthropic
Claude Sonnet 5: Enhanced Agentic AI Model (This article) - Jun 30 · TechCrunch AI
Anthropic launches Claude Sonnet 5 for affordable AI agents↳ Claude Sonnet 5 offers Opus 4.8-level performance at a significantly reduced cost. - Jul 1 · AI News
Anthropic Restores Models, Launches Claude Sonnet 5 - Jul 1 · The Rundown AI
Anthropic Launches Sonnet 5 Amid Fable's Return - Jul 2 · Anthropic
Anthropic Details Fable 5 Cyber Safeguards↳ Anthropic details Fable 5's cybersecurity safeguards, including a new AI jailbreak severity framework to detect dangerous uses. - Jul 2 · AI Explained
Claude Sonnet 5 Released by Anthropic - Jul 3 · The AI Advantage
Anthropic Revives Fable 5 and Launches Sonnet 5 - Jul 3 · Lev Selector
Claude Sonnet 5 and Claude Fable 5 Return - Jul 9 · WIRED AI
Anthropic Introduces Usage-Based Fees for Claude Fable 5↳ Anthropic shifts Claude Fable 5 pricing from flat-rate subscriptions to usage-based fees based on token consumption.
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