Model comparison
Baidu: CoBuddy (free) vs ERNIE 4.5 21B A3B
Compare Baidu: CoBuddy (free) and ERNIE 4.5 21B A3B: input/output $/Mtoken, context window, modalities, and license. OpenRouter-synced pricing.
Baidu
Baidu: CoBuddy (free)
Free provider route for experiments, demos, and cost-sensitive chat workloads
Baidu
ERNIE 4.5 21B A3B
Open-weight instruction model for adaptable chat and self-hosted production workloads
| Metric | Baidu: CoBuddy (free) | ERNIE 4.5 21B A3B |
|---|---|---|
| Provider | Baidu | Baidu |
| Context window | 131,072 | 120,000 |
| Input $/Mtok | $0 | $0.070 |
| Output $/Mtok | $0 | $0.280 |
| Modalities | text | text |
| License | closed | open-weights |
Quick take
On input price, Baidu: CoBuddy (free) is cheaper at $0/Mtok. For context window, Baidu: CoBuddy (free) leads with 131,072 tokens.
Pick based on your workload: high-volume cheap inference vs long-document / agent loops. Enterprise DNA can wire either model into Omni with evals, secrets, and job orchestration.