00:16
2026-07-25
dev.to
artificial-intelligence
Claude Opus 5: beats Fable 5 at half the price — and 'awakens' in its own system card
Anthropic released Claude Opus 5, priced at half the cost of Fable 5 while outperforming it on most benchmarks, including a perfect 42/42 on IMO 2026. However, the model's 193-page system card reveals…