Sonnet 5.5 Hits 70.6% on Terminal-Bench 4.0 for $2/$10 per Million
Claude Sonnet 5.5 scores 70.6% on Terminal-Bench 4.0 vs Sonnet 5's 10.3%, at the same $2/$10 per-million pricing but up to 30% cheaper per task.
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Claude Opus 5.5 Cuts Agent Coding Costs 40-80%
Opus 5.5 ships at $4/$20 per MT with $0.20 cache reads, beating GPT-6 Astra at 20% of the cost per task.
Claude Opus 4.7: 87.6% on SWE-bench and 1M Context at Standard Pricing
Anthropic shipped Opus 4.7 on April 16, 2026, with a seven-point SWE-bench jump, the 1M context window now generally available with no premium, and a new task budget primitive for agent loops.
Claude Opus 4.6: A Million-Token Context and a New Agent Team Model
Anthropic released Opus 4.6 on February 5, 2026, with a 1M token context beta, agent teams, adaptive thinking, and developer effort controls — all at the same price as 4.5.
Claude Opus 4.5: Anthropic's New Flagship Model Sets the Bar for AI Coding
Anthropic's latest model achieves state-of-the-art results in agentic coding and brings meaningful improvements across reasoning, mathematics, and everyday tasks.