Model comparison
FuXi-2.1 vs o3
Capability radar, value bars, and side-by-side posture.
FuXi-2.1
Not scored
value score
o3
93
value score
FuXi-2.1 ctx
—
o3 ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- o393
Attribute tape
| Field | FuXi-2.1 | o3 |
|---|---|---|
| Developer | Unknown | OpenAI |
| Context | — | 200K |
| Modalities | Text, Code | |
| Openness | — | Proprietary Model |
| Speed | — | — |
| Price | — | $10/1M in · $40/1M out |
| Value score | — | 93 |
| 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. | OpenAI reasoning model focused on hard problems. |