ERNIE 4.5 21B A3B API Cost Calculator
Estimate your monthly API costs for ERNIE 4.5 21B A3B from Baidu.
Pricing per 1M tokens
Pricing last verified: Mar 21, 2026
30-Day Price History
Solid line: input price · Dashed line: output price
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Cost Breakdown
Compare with Similar Models
| Model | Input/1M | Output/1M |
|---|---|---|
| ERNIE 4.5 21B A3B Thinking Baidu | $0.0700 | $0.2800 |
| ERNIE 4.5 VL 28B A3B Baidu | $0.1400 | $0.5600 |
| ERNIE 4.5 300B A47B Baidu | $0.2800 | $1.10 |
| ERNIE 4.5 VL 424B A47B Baidu | $0.4200 | $1.25 |
| Spotlight Arcee Ai | $0.1800 | $0.1800 |
Frequently Asked Questions
How much does ERNIE 4.5 21B A3B cost per token?
ERNIE 4.5 21B A3B is priced at $0.0700 per 1M input tokens and $0.2800 per 1M output tokens. Use the calculator above to estimate your monthly costs based on your usage volume.
What is the context window for ERNIE 4.5 21B A3B?
ERNIE 4.5 21B A3B has a context window of 120K tokens (120,000 tokens). The maximum output length is 8K tokens.
Does ERNIE 4.5 21B A3B support function calling (tool use)?
Yes, ERNIE 4.5 21B A3B supports function calling (also called tool use). You can define custom functions that the model can invoke as part of its responses.
How does ERNIE 4.5 21B A3B compare to similar models?
ERNIE 4.5 21B A3B costs $0.0700 input and $0.2800 output per 1M tokens. ERNIE 4.5 21B A3B is competitively priced compared to ERNIE 4.5 21B A3B Thinking ($0.0700 input / $0.2800 output per 1M tokens). See the "Compare with Similar Models" table above, or visit the ERNIE 4.5 21B A3B Thinking page at /tools/cost-calculator/baidu/ernie-4-5-21b-a3b-thinking.