Originally published on the Cosmic blog . Anthropic shipped Claude Sonnet 5 on June 30, 2026 and Claude Opus 5 on July 24, 2026. Both are excellent.
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🤖💻 AI Daily Digest — August 1, 2026 OpenAI Shows How Two Harness Settings Tripled ARC-AGI-3 Scores OpenAI published a rare technical deep-dive on July 29 explaining why GPT-5. 6 Sol looked weak on ARC-AGI-3, a benchmark where agents explore unfamiliar 2D puzzle games and infer the rules through t...
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