Compare DeepSeek V3.1 Base from DeepSeek and gpt-oss-20b from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
DeepSeek V3.1 Base and gpt-oss-20b are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
DeepSeek V3.1 Base, from DeepSeek, has a 163,840-token context window and is priced by the provider serving it on OpenRouter.
gpt-oss-20b, from OpenAI, has a 131,072-token context window and is priced at $0.018/M tokens input, $0.09/M tokens output on OpenRouter.