Compare GPT-5.2 from OpenAI and all-mpnet-base-v2 from sentence-transformers on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
GPT-5.2 and all-mpnet-base-v2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GPT-5.2, from OpenAI, has a 400,000-token context window and is priced at $1.75/M tokens input, $14/M tokens output on OpenRouter.
all-mpnet-base-v2, from sentence-transformers, has a 512-token context window and is priced at $0.005/M tokens on OpenRouter.