ERNIE 4.5 21B A3B Thinking vs Grok 4.20 0309 v2
Baidu vs xAI — benchmarks, pricing, and capabilities side by side.
- •ERNIE 4.5 21B A3B Thinking is cheaper ($0.07 vs $2.00 per 1M input)
| ERNIE 4.5 21B A3B Thinking | Grok 4.20 0309 v2 | |
|---|---|---|
| Intelligence index | — | 91.1 |
| Developer | Baidu | xAI |
| Type | LLM | LLM |
| Access | Open weights | — |
| Context window | 131,072 tokens | — |
| Input price | $0.07 / 1M | $2.00 / 1M |
| Output price | $0.28 / 1M | $6.00 / 1M |
| Speed | — | 105 tok/s |
| Released | October 9, 2025 | April 7, 2026 |
| Parameters | — | — |
| Input modalities | Text | — |
| Output modalities | Text | — |