Overview
Claude Opus 4.5 vs all-mpnet-base-v2: side-by-side summary
Claude Opus 4.5 and all-mpnet-base-v2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Claude Opus 4.5, from Anthropic, has a 200,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.
all-mpnet-base-v2, from sentence-transformers, is priced at $0.005/M tokens on OpenRouter.
- Context window
- Claude Opus 4.5: 200,000 tokens
- all-mpnet-base-v2: Not applicable
- Price
- Claude Opus 4.5: $5/M tokens input, $25/M tokens output
- all-mpnet-base-v2: $0.005/M tokens
- Provided by
- Claude Opus 4.5: Anthropic
- all-mpnet-base-v2: sentence-transformers