Model catalog profile

Baidu: ERNIE 4.5 21B A3B Th… | API profile

Start with Baidu: ERNIE 4.5 21B A3B Th… model ID, modality, and parameter surface, then decide whether to continue to a key check or integration test.

Provider

Baidu Wenxin

5 models in catalog

Context

131,072

China model route

Input

$0.07

USD / 1M tokens

Output

$0.28

USD / 1M tokens

What this page answers

ERNIE-4.5-21B-A3B-Thinking is Baidu's upgraded lightweight MoE model, refined to boost reasoning depth and quality for top-tier performance in logical puzzles, math, science, coding, text generation, and expert-level aca

Baidu Wenxin · baidu/ernie-4.5-21b-a3b-thinking
text->text · China model route
131,072 context · $0.07 input

Before connecting

Do not stop at the model name. Before integration, verify base URL, protocol, visible models, parameters, and limits together.

supports frequency_penalty
supports include_reasoning
supports max_tokens
supports presence_penalty
supports reasoning

Next action

After this page, the usual next step is to open the model profile, the provider profile, or run a key check to confirm the real callable range.

Check whether the model fits the use case
Then verify key permission and callable models

Continue

baidu/ernie-4.5-21b-a3b-thinking