Models & Labs
Anthropic Releases Opus 5.5 Coding Model
Matt Wolfehigh confidence
Why it matters
- →Lowers barrier to entry for high-end coding AI via the $20/month Pro plan
- →Competitive pricing structure for long-context coding tasks
- →Signals Anthropic's continued push into developer tooling dominance
Anthropic has released Opus 5.5, positioning it as a leading model for complex coding workflows. The model is accessible across Claude’s Pro ($20/month), Max, Team, and Enterprise tiers, with API pricing set at $4 per million input tokens and $20 per million output tokens. Early testing suggests strong performance in sustained coding environments, such as extended game development tests.
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
- 1Anthropic Releases Claude Fable 5 and Mythos 5
Skill Leap AI · June 9, 2026 · Same story
- 2Anthropic Launches Claude Opus 5 Model
Anthropic · July 24, 2026 · Same story
- 3Claude Opus 5 Now in GitHub Copilot
GitHub Changelog · July 24, 2026 · Same story
- 4Anthropic Launches Opus 5 Model
TechCrunch AI · July 24, 2026 · Same story
- 5Anthropic Launches Claude Opus 5 Model
The Rundown AI · July 27, 2026 · Same story
- 6Anthropic's Opus 5 Model Surpasses Expectations
The Rundown AI · July 27, 2026 · Same story
- 7Anthropic's Opus 5 Release Raises Concerns for Indie Hackers
Fireship · July 29, 2026 · Same story
- 8Anthropic Releases Claude Opus 5
Matt Wolfe · July 31, 2026 · Same story
What happened next
- 9Claude Code v2.1.286 patches security and session stability
Claude Code Releases · October 2, 2026 · Background
Follow this story
Open the full story →Anthropic releases Claude Opus 5.5 with tighter security
9 developments
- Sep 22 · The Verge AI
Anthropic releases Claude Opus 5.5 with tighter security - Sep 22 · TechCrunch AI
Anthropic releases Opus 5.5 with lower prices↳ Opus 5.5 lowers output costs to $20 per million tokens while maintaining performance that beats the larger Fable model in coding and knowled - Sep 22 · GitHub Changelog
Claude Opus 5.5 arrives in GitHub Copilot↳ Claude Opus 5.5 is now available in GitHub Copilot for enterprise developers. - Sep 23 · Matthew Berman
Anthropic releases Opus 5.5 - Sep 23 · Duncan Rogoff
Anthropic releases official Claude Code playbook for Opus 5.5↳ Anthropic released an official guide optimizing Claude Code with Opus 5.5 to reduce latency and cost through specific prompting habits. - Sep 24 · AI Explained
Anthropic Releases Claude Opus 5.5 Model - Sep 25 · Lev Selector
Claude Opus 5.5 and GPT-6 Sol Released↳ OpenAI launches GPT-6 Sol and Luna variants alongside Anthropic's release. - Sep 26 · Matt Wolfe
Anthropic Releases Claude Opus 5.5 - Sep 30 · Matt Wolfe
Anthropic Releases Opus 5.5 Coding Model (This article)
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