Overview
Fugu Ultra v2 vs Union Alpha: side-by-side summary
Fugu Ultra v2 and Union Alpha are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Fugu Ultra v2, from sakana, has a 1,000,000-token context window and is priced at $5/M tokens input, $30/M tokens output on OpenRouter.
Union Alpha, from Stealth, has a 262,144-token context window and is free to use on OpenRouter.
- Context window
- Fugu Ultra v2: 1,000,000 tokens
- Union Alpha: 262,144 tokens
- Price
- Fugu Ultra v2: $5/M tokens input, $30/M tokens output
- Union Alpha: Free
- Provided by
- Fugu Ultra v2: sakana
- Union Alpha: Stealth