E

ERNIE 4.5 21B A3B Thinking

ERNIECurrent
byBaidu(enterprise)
Released October 9, 2025
API DocsPlayground
Context131.1K tokens
Price (In / Out)$0.07/M / $0.28/M
CategoryLarge Language Model
Max Output65.5K tokens

About ERNIE 4.5 21B A3B Thinking

ERNIE 4.5 21B A3B Thinking is a large language model from Baidu. Supports up to 131,072 token context window. Available from $0.07/M input tokens.

Capabilities

textcodeextended thinking

Input Modalities

text

Output Modalities

text

Technical Details

API Identifier
baidu/ernie-4.5-21b-a3b-thinking
Category
Large Language Model
Context Window
131,072 tokens
Max Output Tokens
65,536 tokens

Tags

reasoningbudget-friendlylong-contextchain-of-thought

Pricing

Token pricing for ERNIE 4.5 21B A3B Thinking API usage.

Input Tokens

$0.07/M

per million tokens

Output Tokens

$0.28/M

per million tokens

Pricing Calculator

Input cost$0.07
Output cost$0.14
Estimated monthly cost$0.21

Competing Models

Same pricing tier — direct alternatives to ERNIE 4.5 21B A3B Thinking

Efficiency
Hermes 4 70Bnous-research
$0.13/M / $0.40/MCompare
LFM2-24B-A2Bliquid-ai
$0.03/M / $0.12/MCompare
Olmo 3.1 32B Instructallenai
$0.20/M / $0.60/MCompare
Phi 4microsoft
$0.07/M / $0.14/MCompare
Step 3.5 Flashstepfun
$0.10/M / $0.30/MCompare
Solar Pro 3upstage
$0.15/M / $0.60/MCompare
Granite 4.0 Microibm
$0.02/M / $0.11/MCompare
Hunyuan A13B Instructtencent
$0.14/M / $0.57/MCompare
Mistral Small Creativemistral
$0.10/M / $0.30/MCompare
DeepSeek V3.2deepseek
82
242
$0.26/M / $0.42/MCompare
Nemotron 3 Supernvidia
$0.09/M / $0.45/MCompare
ERNIE 4.5 21B A3Bbaidu
$0.07/M / $0.28/MCompare
Command R7B (12-2024)cohere
$0.04/M / $0.15/MCompare
Reka Flash 3reka
$0.10/M / $0.20/MCompare
Olmo 3 32B Thinkallenai
$0.15/M / $0.50/MCompare
DeepSeek V3.2 Expdeepseek
82
242
$0.27/M / $0.41/MCompare
Trinity Miniarcee-ai
$0.04/M / $0.15/MCompare
Hermes 3 70B Instructnous-research
$0.30/M / $0.30/MCompare
MiMo-V2-Flashxiaomi
$0.09/M / $0.29/MCompare
Llama Guard 3 8Bmeta
$0.48/M / $0.03/MCompare
Nemotron 3 Nano 30B A3Bnvidia
$0.05/M / $0.20/MCompare
Nova Micro 1.0amazon
$0.04/M / $0.14/MCompare
Command R (08-2024)cohere
$0.15/M / $0.60/MCompare
B
Baiduenterprise
4 Models
View full profile
4 Models

AI Models by Baidu

Large language models from the same organization.

ModelContext WindowPrice (In / Out per M)
ERNIE 4.5 21B A3BCurrent120K$0.07 / $0.28
ERNIE 4.5 VL 28B A3BCurrent30K$0.14 / $0.56
ERNIE 4.5 VL 424B A47BCurrent123K$0.42 / $1.25