v4.45.0

Changes since v4.44.0 (2026-09-23).

Added

• OpenAI provider: add gpt-6.1-sol variant (1.05M input / 128K output, $2 / $0.10 / $10 pricing).

Changed

• Anthropic provider: replace claude-sonnet-5 with claude-sonnet-5-5 as default model (1M input / 128K output, same $2 / $0.20 / $10 pricing).