Sonnet 5 becomes default, enabling autonomous handling of complex tasks Easily automate multi-step daily tasks at lower cost Make Claude easier to deploy through AWS Claude Science cuts prep work for research tasks Gemini Spark now handles more Mac busywork Choose GPT-5.6 Sol for strong performance on security tasks GPT-5.6 Sol boosts efficiency for long-horizon security tasks Unifies Gemini’s dev entry point for faster prototyping Codex becomes primary AI tool company-wide as tasks over 1 hour dominate GPT-5.5 Instant now understands intent and handles complex constraints better Tag Claude in Slack to delegate tasks with your whole team Slack users can hand work off to Claude more easily Confidential AI gets stronger for sensitive workloads Gemini API key management is moving to safer auth keys Google Home Speaker makes home control feel natural Claude expands more easily into Korean businesses and research Anthropic expands Claude adoption and research in Korea Domain knowledge helps intermediate users succeed with Claude Code Easier to predict model behavior using real deployment data beforehand Google makes data analysis easier through conversation Sonnet 5 becomes default, enabling autonomous handling of complex tasks Easily automate multi-step daily tasks at lower cost Make Claude easier to deploy through AWS Claude Science cuts prep work for research tasks Gemini Spark now handles more Mac busywork Choose GPT-5.6 Sol for strong performance on security tasks GPT-5.6 Sol boosts efficiency for long-horizon security tasks Unifies Gemini’s dev entry point for faster prototyping Codex becomes primary AI tool company-wide as tasks over 1 hour dominate GPT-5.5 Instant now understands intent and handles complex constraints better Tag Claude in Slack to delegate tasks with your whole team Slack users can hand work off to Claude more easily Confidential AI gets stronger for sensitive workloads Gemini API key management is moving to safer auth keys Google Home Speaker makes home control feel natural Claude expands more easily into Korean businesses and research Anthropic expands Claude adoption and research in Korea Domain knowledge helps intermediate users succeed with Claude Code Easier to predict model behavior using real deployment data beforehand Google makes data analysis easier through conversation

Official sources only. Rumors, leaks, and get-rich schemes are excluded.

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AI BriefingAnthropicFeature Updates18:00

AI summarized from verified sources

Easily automate multi-step daily tasks at lower cost

Run agentic tasks cheaper and more capably to raise work efficiency

SOURCE CHECK

2 sources

VERIFIED

Sources

Primary / anthropic.com

Official Blog

Supporting / anthropic.com

Official Blog

Key Points

1Major gains over Sonnet 4.6
2Default for Free/Pro plans
3Intro pricing $2/M input tokens
4Enhanced cyber safety safeguards

Anthropic released Claude Sonnet 5 on June 30, 2026, making it the default across all plans. It substantially improves reasoning, tool use, and coding over Sonnet 4.6, approaching Opus 4.8 performance at lower prices. This boosts productivity for developers and business users in agentic tasks.

Key points

Sonnet 5 strengthens agent capabilities for autonomous planning, tool use, and self-checking. Priced lower than Opus, it suits daily automation tasks.

Impact

Developers and teams can delegate complex work more affordably, expecting time and cost savings. Enhanced safety measures allow confident use.

What changed

Anthropic released Claude Sonnet 5 on June 30, 2026, making it the default across all plans. It substantially improves reasoning, tool use, and coding over Sonnet 4.6, approaching Opus 4.8 performance at lower prices. This boosts productivity for developers and business users in agentic tasks.