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Public story · 2026-07-02 · high
The update adds native 1M context and cuts input pricing to $2 per million tokens through August 31.
Why now: The discounted pricing window opened with the launch and runs through August 31, per Anthropic.
Anthropic shipped Claude Sonnet 5 as Claude Code's default model, adding a native 1M-token context window, per the company.
The swap covers Free and Pro users by default. Anthropic calls Sonnet 5 its most agentic Sonnet yet, and says it logs measurably fewer undesirable behaviors in agentic settings than Sonnet 4.6. That matters most for anyone running long autonomous coding sessions, where a single drift can send a whole run sideways.
Intro pricing is $2 per million input tokens and $10 per million output tokens, through August 31. It'll rise to $3 and $15 on September 1, a 50% jump on both ends.
I use Claude Code every day in my personal projects. Here's the win: bigger context and fewer agentic missteps mean longer sessions before things go off track.
The likely effect: a rush of heavy agent work before the price jump, then a drop in usage once September pricing kicks in.
Each link below shares sources, entities, or timing with this story.
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Spotify's Portal team published Xirp on August 10: a vendor-neutral agentic development environment that manages concurrent sessions across Claude Code, Gemini CLI, and Codex, each session isolated in its own git worktree so dozens of agents can work the same codebase without...
Anthropic published on August 10 that a research version of Claude improved the lower bound on the proportion of zeta zeros satisfying RH, producing a formally verifiable Lean proof. Validated by Anthropic mathematicians Levent Alpöge and Ralph Furman, reviewed externally by B...
Anthropic launched Claude Sonnet 4.6 claiming performance comparable to Opus 4.5 at $3/$15 per million tokens (vs. Opus's $5/$25). SWE-bench Verified: 79.6% (near Opus 4.6's 80.8%). OSWorld-Verified: 72.5% (tied with Opus 4.6's 72.7%). 1M token context window in beta. Now the...
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