Key Info
OpenRouter states that Anthropic's Opus 5.5 is the #1 model by share of spending across its platform, driving a rebound for Anthropic in its competition with OpenAI. Sonnet 5.5 and Haiku 5.5 also had strong launch periods.
Highlights
- Opus 5.5 ranks #1 in share of spending on OpenRouter
- The result marks a rebound for Anthropic versus OpenAI
- Sonnet 5.5 and Haiku 5.5 also saw strong launch periods
- The insight comes from OpenRouter's Inferred data newsletter, based on 600+ trillion monthly tokens
