Claude Sonnet 4.5 vs DeepSeek R1T2 Chimera: side-by-side summary

Claude Sonnet 4.5 and DeepSeek R1T2 Chimera are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Sonnet 4.5, from Anthropic, has a 1,000,000-token context window and is priced at $3/M tokens input, $15/M tokens output on OpenRouter.

DeepSeek R1T2 Chimera, from tngtech, has a 163,840-token context window and is priced by the provider serving it on OpenRouter.

Context window

• Claude Sonnet 4.5: 1,000,000 tokens
• DeepSeek R1T2 Chimera: 163,840 tokens

Price

• Claude Sonnet 4.5: $3/M tokens input, $15/M tokens output
• DeepSeek R1T2 Chimera: Pricing varies by provider

Provided by

• Claude Sonnet 4.5: Anthropic
• DeepSeek R1T2 Chimera: tngtech

• Claude Sonnet 4.5 model details, providers and pricing
• DeepSeek R1T2 Chimera model details, providers and pricing