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Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work.

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Posted
28 Sep, 2026
Spotted
29 Sep, 2026
Curator
@baseddesigner
posts.design
PostsHeadersOGs
Claude Sonnet 5.5, the second model in the Claude 5.5 family — public x-twitter post media curated for social post design inspiration.

Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family. It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work.

See more fromClaude
TagsLaunch
Colors

Colors sampled from the saved poster

Posted28 Sep, 2026
Spotted29 Sep, 2026
Curator@baseddesigner
see original

More from Claude

@claudeai·30 posts

ClaudeDevs: is our new home for developers building with Claude — public x-twitter post media curated for social post design inspiration.
ClaudeDevs: is our new home for developers building with Claude · Claude · @ClaudeDevs · Product Update · Product Screenshot. Captured 2026-09-30. Original source attached on the reference page.
5d ago
@ClaudeDevs
Claude Opus 5.5, the first model in our new Claude 5.5 family — public x-twitter post media curated for social post design inspiration.
Claude Opus 5.5, the first model in our new Claude 5.5 family · Claude · @claudeai · Launch · Announcement Card. Captured 2026-09-22. Original source attached on the reference page.
1w ago
@claudeai
New on Claude Marketplace: @CrowdStrike, @cursor_ai, @FactoryAI — public x-twitter post media curated for social post design inspiration.
New on Claude Marketplace: @CrowdStrike, @cursor_ai, @FactoryAI · Claude · @claudeai · Product Update · Product Screenshot. Captured 2026-09-09. Original source attached on the reference page.
3w ago
@claudeai
Claude OG image: Claude
Claude · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com
Claude
Claude OG image: Claude Code for Enterprise | Claude by Anthropic
Claude Code for Enterprise | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/product/claude-code/enterprise
Claude
Claude OG image: Claude Cowork | Claude by Anthropic
Claude Cowork | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/product/cowork
Claude
Claude OG image: Claude Design | Turn Ideas into Design | Claude by Anthropic
Claude Design | Turn Ideas into Design | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/product/design
Claude
Claude OG image: Claude Enterprise Plan | Claude by Anthropic
Claude Enterprise Plan | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/solutions/enterprise
Claude
Claude OG image: Claude in Chrome | Claude by Anthropic
Claude in Chrome | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/claude-in-chrome
Claude
Claude OG image: Claude in Slack: Tag @Claude in any thread | Claude by Anthropic
Claude in Slack: Tag @Claude in any thread | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/product/tag
Claude
Claude OG image: Claude Science (beta) | Claude by Anthropic
Claude Science (beta) | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/product/claude-science
Claude
Claude OG image: Claude Security | Claude by Anthropic
Claude Security | Claude by Anthropic · Claude · Other · Brand Graphic. Captured 2026-09-07. Original source attached on the reference page.
claude.com/product/claude-security
Claude

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Extropic: Z1T — public x-twitter post media curated for social post design inspiration.
Extropic: Z1T · Extropic · @extropic · Launch · Announcement Card. Captured 2026-09-04. Original source attached on the reference page.
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Comma — public x-twitter post media curated for social post design inspiration.
Comma · Comma · @CommaAgents · Launch · Announcement Card. Captured 2026-10-01. Original source attached on the reference page.
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Cognition: Devin Mobile is now available in beta · Cognition · @cognition · Launch · Announcement Card. Captured 2026-09-28. Original source attached on the reference page.
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Ondo Finance: Now live on Ethereum and BNB Chain — public x-twitter post media curated for social post design inspiration.
Ondo Finance: Now live on Ethereum and BNB Chain · Ondo Finance · @Ondo · Launch · Announcement Card. Captured 2026-09-24. Original source attached on the reference page.
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Catalyst is now live on Robinhood Chain by @RobinhoodCrypto — public x-twitter post media curated for social post design inspiration.
Catalyst is now live on Robinhood Chain by @RobinhoodCrypto · catalyst · @CatalystMkts_ · Launch · Announcement Card. Captured 2026-09-24. Original source attached on the reference page.
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