⚠ This model is no longer available

claude-sonnet-4.5 was removed from RealRelay on 2026-08-25. This page is kept as a historical record: prices mentioned below are no longer valid, and the API no longer serves this model.

claude-sonnet-4.5

claude-sonnet-4.5 is a Anthropic model that was available through RealRelay until it was removed on 2026-08-25.

Similar models still available

Pricing

no longer offered
claude-sonnet-4.5 was removed from RealRelay on 2026-08-25. This page is kept as a historical record: prices mentioned below are no longer valid, and the API no longer serves this model.

Specifications (as of 2026-08-25)

Context window
400K
Input
Text
Output
Text
Capabilities
Reasoning, Tool use, Vision

claude-sonnet-4.5 · This model is no longer available | RealRelay.ai