Compare Solar Mini 4 from upstage and GLM 5.3 from Z.ai on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
Solar Mini 4 and GLM 5.3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Solar Mini 4, from upstage, has a 524,288-token context window and is priced at $0.05/M tokens input, $0.20/M tokens output on OpenRouter.
GLM 5.3, from Z.ai, has a 1,310,720-token context window and is priced at $0.5625/M tokens input, $2.50/M tokens output on OpenRouter.