#swe-bench articles | Clauder Navi

Claude Sonnet 4.5 とは｜機能・料金・後継 4.6 との違いを整理

2025年9月リリースの Claude Sonnet 4.5 はコーディング・エージェント型タスクに強化されたモデル。SWE-bench 77.2%・200K コンテキスト・Extended Thinking・Sonnet 4.6 との機能差を公式スペックから整理する。

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What Is Claude Opus 4.5 | 76% Token Reduction Compared to Sonnet 4.5 Explained

A breakdown of Claude Opus 4.5's capabilities and pricing. At $5 input / $25 output — Sonnet-level pricing — it delivers roughly 67% cost reduction over Opus 4.1, and at medium Effort achieves Sonnet 4.5-equivalent accuracy with 76% fewer tokens. Covers how to use the Effort parameter and how to leverage prompt caching and batch inference.

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Claude Opus 4.1 / 4.5 / 4.6 / 4.7 | Performance & Pricing Comparison

A four-axis comparison of Claude Opus 4.1 / 4.5 / 4.7 across SWE-bench score, pricing, speed, and migration risk. For autonomous agents, Opus 4.7 with SWE-bench 87.6% is the top choice; for cost savings, Opus 4.5 at $5 input is optimal; to avoid breaking changes, sticking with Opus 4.6 is the practical solution.

Claude

What is Claude Opus 4.1 | SWE-bench, Pricing, and Changes Explained

A breakdown of Claude Opus 4.1's changes, pricing, and API identifier usage. At the same price as Opus 4 ($15 input / $75 output per 1M tokens), it enhances multi-file refactoring and long-document search quality, achieving 74.5% on SWE-bench Verified. Includes guidance on when to pin a snapshot for stable production behavior.