Fusion turns your prompt into a small multi-model deliberation. A panel of expert models (see below) analyzes your prompt in parallel with web search and web fetch enabled, then a...
Model details →OpenRouter: Fusion vs Anthropic Claude Haiku Latest
OpenRouter: Fusion and Anthropic Claude Haiku Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
This model always redirects to the latest model in the Anthropic Claude Haiku family.
Model details →Side-by-side comparison
| Capability | OpenRouter: Fusion | Anthropic Claude Haiku Latest | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 200K | 🏆 OpenRouter: Fusion |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $-1000000.00 | $1.00 | 🏆 OpenRouter: Fusion |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $-1000000.00 | $5.00 | 🏆 OpenRouter: Fusion |
| Tool / function calling First-class support for emitting structured tool calls. | — | Yes | 🏆 Anthropic Claude Haiku Latest |
| Vision input Accepts image inputs alongside text. | — | Yes | 🏆 Anthropic Claude Haiku Latest |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | — | Yes | 🏆 Anthropic Claude Haiku Latest |
Frequently asked questions
Is OpenRouter: Fusion better than Anthropic Claude Haiku Latest?
OpenRouter: Fusion and Anthropic Claude Haiku Latest are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between OpenRouter: Fusion and Anthropic Claude Haiku Latest?
Input: $-1000000.00 vs $1.00 per 1M tokens. Output: $-1000000.00 vs $5.00 per 1M tokens.
What context windows do OpenRouter: Fusion and Anthropic Claude Haiku Latest support?
OpenRouter: Fusion supports up to 1M tokens. Anthropic Claude Haiku Latest supports up to 200K tokens.
Do both OpenRouter: Fusion and Anthropic Claude Haiku Latest support tool calling?
OpenRouter: Fusion: not advertised. Anthropic Claude Haiku Latest: yes.
Compare OpenRouter: Fusion with other models
vs Anthropic Claude Haiku Latestvs Anthropic Claude Sonnet Latestvs Anthropic: Claude Fable Latestvs Anthropic: Claude Opus Latest