Will Claude 3.5 Opus be available via API by end of 2025?

Anthropic releases Claude 3.0+ Opus

Anthropic releases Claude 3.7+ Sonnet

What will be the *first* ELO Rating of Claude 3.5 Opus in the LMSYS Arena?

Which will be released first: Claude 3.5 Opus or Claude 4.0 Sonnet?

When will Claude 4 be released?

What will Claude 3.5 Opus's reported 0-shot performance on GPQA Diamond be upon release?