Baidu: ERNIE 4.5 21B A3B Thinking
🇨🇳 Baidu · ERNIE 4.5
Overview
Baidu: ERNIE 4.5 21B A3B Thinking is a large language model API from Baidu, part of its ERNIE 4.5 model family. At $0.070 per million input tokens and $0.280 per million output tokens, it sits in the budget tier — among the cheaper options for high-throughput or cost-sensitive workloads. Output tokens cost about 4× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. The 131K-token context window — around 197 pages of text — comfortably handles long documents, multi-file code, or extended conversations. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.
| Dimension | Unit | Price (USD) |
|---|---|---|
| Input | per 1M tokens | $0.070 |
| Output | per 1M tokens | $0.280 |
- Provider
- 百度 (Baidu)
- Model Family
- ERNIE 4.5
- Version String
- baidu/ernie-4.5-21b-a3b-thinking
- Status
- Active
- Modality
- Text
- Context Window
- 131,072 tokens
- Output Limit
- 65,536 tokens
90-Day Price Trend
Input / Output price (USD per 1M tokens)
Past 90 days of records; every price change is shown here
| Date | Dimension | Price (USD) | Source |
|---|---|---|---|
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter | |
| Output | $0.280 | OpenRouter | |
| Input | $0.070 | OpenRouter |
Key Insights
Key data points from this page for quick reference and citation.
- Baidu: ERNIE 4.5 21B A3B Thinking Input price: $0.07/M tokens
- Baidu: ERNIE 4.5 21B A3B Thinking Output price: $0.28/M tokens
- Context window: 131,072 tokens
- Provider: Baidu
- Model family: ERNIE 4.5
- Modalities: Text
- Data source: OpenRouter, updated daily