{"slug": "stealth-model", "title": "Stealth Model", "summary": "OpenRouter has released Ox Alpha, a free stealth reasoning model with a 1 million token context window, designed for coding, agentic work, and production workloads. The model, released on August 20, 2026, is developed by an anonymous third-party provider and achieves 67 tokens per second throughput with 1.06 seconds latency. Prompts and completions are retained by the provider but not used for training.", "body_md": "This stealth model is developed and operated by a third-party model provider. Prompts and completions for this model are retained by the provider and are not used for training; all other use is governed by the [Stealth Model Terms(opens in new tab)](https://openrouter.ai/terms/stealth).\n\nOx Alpha is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context.\n\nOx Alpha is a stealth model. It is developed and operated by a third-party provider who has chosen to remain anonymous during this preview. OpenRouter routes requests to it and is not its developer, owner, or provider. Prompts and completions are retained by the provider and are not used for training; all other use is governed by the [Stealth Model Terms(opens in new tab)](https://openrouter.ai/terms/stealth).\n\nModalities\n\nPrice\n\nFree\n\nContext\n\n1M\n\nReleased\n\nAug 20, 2026\n\n| Free | Free | 1.06s | 67 tps |\n\nThroughput\n\n67tok/s\n\nP50, best across providers\n\nLatency\n\n1.06s\n\nP50, best provider\n\n99.98%\n\n99.91%\n\nWhen an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the [Endpoints API](/docs/api/api-reference/endpoints/list-endpoints). [Learn more](/docs/provider-routing) about our load balancing and customization options.", "url": "https://wpnews.pro/news/stealth-model", "canonical_source": "https://openrouter.ai/stealth/ox-alpha", "published_at": "2026-08-20 23:56:35+00:00", "updated_at": "2026-08-21 00:14:05.719928+00:00", "lang": "en", "topics": ["large-language-models", "ai-products", "ai-infrastructure"], "entities": ["OpenRouter", "Ox Alpha"], "alternates": {"html": "https://wpnews.pro/news/stealth-model", "markdown": "https://wpnews.pro/news/stealth-model.md", "text": "https://wpnews.pro/news/stealth-model.txt", "jsonld": "https://wpnews.pro/news/stealth-model.jsonld"}}