OpenAI: gpt-oss-20b (free)

The OpenAI gpt-oss-20b model is designed for handling text-based tasks with a context length of 131,072 tokens and supports reasoning and tools integration. It excels in both general AI capabilities and specific coding tasks, achieving scores of 34.1 on the AI Index Coding benchmark. For those prioritizing cost-effectiveness and broad applicability across various text-related projects, gpt-oss-20b is a compelling choice. Its free availability makes it accessible for frequent use, particularly in scenarios requiring both reasoning and tool integration. With a blended benchmark score of 25.7, it stands as a solid option among free models, though its specific strengths lie more in coding than agentic tasks.