Claude Opus 5 remains unannounced despite a Cursor model-picker leak

ExplainX·low signal

As of mid-July there is still no official Anthropic announcement, no claude-opus-5 API model ID, and no system card, despite a research model labeled 'Honeycomb EAP' briefly appearing in Cursor's model picker around July 9 before being pulled within hours. Crypto and aggregator outlets have run 'launch this week' stories that trace back to that leak rather than any primary source. The current official flagship remains Claude Opus 4.8 from May 28, 2026 at $5/$25 per million tokens — treat everything else as rumor.