Model comparison
FuXi-2.1 vs Claude 4 Opus
Capability radar, value bars, and side-by-side posture.
FuXi-2.1
Not scored
value score
Claude 4 Opus
95
value score
FuXi-2.1 ctx
—
Claude 4 Opus ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Opus95
Attribute tape
| Field | FuXi-2.1 | Claude 4 Opus |
|---|---|---|
| Developer | Unknown | Anthropic |
| Context | — | 200K |
| Modalities | Text, Code, Image | |
| Openness | — | Proprietary Model |
| Speed | — | — |
| Price | — | $15/1M in · $75/1M out |
| Value score | — | 95 |
| Summary | FuXi-2.1 is a data-driven global weather forecasting model operating at 0.25° resolution with 6-hour time steps, capable of producing deterministic forecasts out to 10 days. It uses a Transformer architecture with a variable-aware multi-head decoder that separately handles pressure-level, surface, and derived output fields. | Anthropic frontier Opus-class model. |