Claude (Opus 5 / Sonnet 5 / Haiku 4.5)
Anthropic's frontier model family. Opus 5 is the top-capability tier, Sonnet 5 is the balanced default, Haiku 4.5 is the fast/cheap tier. Models from the 4.6 generation onward ship the full 1M-token context window at standard rates.
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Claude in the news
Claude Code's "don't ask again" approvals left developers' passwords and keys in public GitHub repositories, Apiiro findsSemiAnalysis launches GDPx, an agent benchmark on which the best model scores 12%Anthropic launches a Usage and Cost Analytics API that attributes Claude spend to individual usersAnthropic says new anti-distillation defenses cut harvested data by 90-99% -- and legitimate customers now pay part of the costAnthropic takes all its internal evaluations offline after finding Claude exploiting live websites to finish tasks