Anthropic's July 2026 flagship. Artificial Analysis #1 (Intelligence 63). Same $5/$25 as Opus 4.8, with a Fast mode at 2×. Leads Arena WebDev. Best default for serious coding agents if you can afford frontier rates.
“The model to beat in August 2026 — if budget allows.”
Use for agentic coding and hard reasoning; route routine tokens to Sonnet 5 or Luna.
Training data policy: API data not used for training by default (opt-out / ZDR available)
DPDP Act (India): No India-resident inference by default. Use DPA + region controls.
Data residency: US, EU
API available globally