AnthropicがSonnet 5.5（内部コード「Fennec」）を来月発表か。最大200万トークンのコンテキスト対応、高速推論と低遅延、長文推論・多段計画が大幅向上。ブラウザ／端末ツール連携も強化。性能は最上位「Claude Fable 5」に迫るが、Sonnet価格を維持しコスパ最強を狙う。....
Anthropicの次世代プログラミングAI「Claude Sonnet5（コード名Fennec）」がGoogle Cloudで早期リーク。2026年2月リリース予定で、開発チーム並みの高性能を謳う。APIエラーログから完成状態と判明。....
Anthropicは次世代AIプログラミングモデルClaude Sonnet5を発表。性能は既存モデルを大幅に上回り、価格は半減。革新的な「蜂群」開発手法でAIプログラミングの課題解決を目指し、業界再編が期待される。....
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