Anthropic released Claude Opus 5 on July 24. At the unchanged $5/$25 pricing, it delivers performance approaching the publicly top-tier Fable 5 and replaces the default Opus in Claude Code. Here's a rundown of the shifts in pricing, benchmarks, and agent operations—along with the caveats to keep in
Anthropicが7月24日にClaude Opus 5を公開。据え置きの$5/$25で公開最上位Fable 5に迫る性能を打ち出し、Claude Codeの既定Opusも置き換え。料金・ベンチ・エージェント運用の変化と留保点を整理します。
Moonshot AI released Kimi K3 on July 16. With 2.8 trillion parameters and a 1M-token context, it lands near the top of coding leaderboards — but at $3/$15, its pricing now matches Sonnet 5. The weights are slated for July 27, and the "Chinese models are cheap" assumption has collapsed.
Moonshot AIが7月16日にKimi K3を公開。2.8兆パラメータ・1M文脈でコーディング系の採点表上位に食い込む一方、料金は$3／$15とSonnet 5並みに。重みの公開は7月27日予定で、「中国製は安い」の前提が崩れました。