So sánh mô hình

This is OpenRouter's auto-updating alias to OpenAI's current 'Sol' model, always resolving to the newest release in that family (1.05M-token context) rather than a pinned snapshot. Sol has been positioned as OpenAI's flagship-tier alias, priced below the newer, more expensive Astra alias in the same family.

Claude Haiku 4.5 is Anthropic's fast, affordable small model in the Claude 4 generation, balancing strong instruction-following and coding ability with low latency. It is designed for high-throughput agentic and chat applications where speed and cost efficiency are priorities.