Ox Alpha appeared on OpenRouter on August 20 without an attached company name and was presented in a stealth preview by an anonymous third-party provider. The release was described as a reasoning model for coding, sustained agentic work, and production workloads, with Ox Alpha leading coding benchmarks over Claude Fable 5 and GPT-5.6 Sol. The model is free to use for the next week and can read up to roughly one million tokens in a single context window, accepting text, image, and video input and returning text output.
Ox Alpha ranked ahead of Claude Fable 5 and GPT-5.6 Sol on coding benchmarks. In the DeepSWE benchmark, Ox Alpha scored 80% on the first pass in a 10-task sample, compared with Claude Fable 5 at 65% and GPT-5.6 Sol at 52%. The DeepSWE number is reported as a first-pass success rate within that 10-task sample. As of August 22, Ox Alpha had no entries on Artificial Analysis or LMSys Arena.
Ox Alpha accepts text, image, and video inputs and returns text output. The model supports tool and function calling. These capabilities were part of the model’s preview listing. Its JSON output is not schema-enforced. The model can read up to roughly one million tokens in a single context window. Ox Alpha is free to use for the next week.
The Ox Alpha model, identified as a stealth model, is accessible for free for one week, allowing users to experience its functionalities without cost. This model offers generous rate limits with nearly unlimited usage constraints. According to OpenCode, Ox Alpha’s route can process up to 100 trillion tokens daily, while Nous Research claims a capacity of up to 1 quadrillion tokens per day. Tokens serve as the fundamental unit of information for AI models, and such processing capabilities ensure Ox Alpha’s alignment with leading models in the market. Notably, OpenCode emphasizes “zero data retention,” ensuring user data is safeguarded. Additionally, the model gained recognition when Stripe CEO Patrick Collison referred to Ox Alpha as “very impressive.”
The Ox Alpha model appeared on OpenRouter without an attached company name and was presented as a reasoning model that leads coding benchmarks among competing models. It offers multimodal input and text output, supports tool and function calling, provides a large context window, and is available free to use for a limited time.
