Skip to main content
idapt
HomeCodeAI ModelsPricing
Sign inStart free
Baidu

ERNIE 4.5 21B Thinking

$Affordable
Baidu
CompareChat

Compact ERNIE 4.5 model with always-on thinking mode. Efficient 21B MoE (3B active) with extended reasoning for complex Chinese and English tasks.

Benchmarks

No benchmarks available

This model hasn't been evaluated by Artificial Analysis yet. Benchmark scores will appear once they're published.

Specifications

Vision
Audio
Reasoning
MoE
Architecture
21B
Parameters
3B
Active

Providers

Same family
BaiduERNIE 4.5 300B
CompareChat with ERNIE 4.5 21B Thinking

Compare with

OpenAIGPT 5.6 Solvs ERNIE 4.5 21B ThinkingOpenAIGPT 5.6 Lunavs ERNIE 4.5 21B ThinkingAnthropicClaude Fable 5vs ERNIE 4.5 21B ThinkingAnthropicClaude Opus 4.8vs ERNIE 4.5 21B ThinkingAnthropicClaude Sonnet 5vs ERNIE 4.5 21B ThinkingAnthropicClaude Haiku 4.5vs ERNIE 4.5 21B ThinkingGoogleGemini 3.6 Flashvs ERNIE 4.5 21B ThinkingGoogleGemini 3.5 Flashvs ERNIE 4.5 21B ThinkingGoogleGemini 3.5 Flash-Litevs ERNIE 4.5 21B ThinkingGoogleGemma 4 31Bvs ERNIE 4.5 21B ThinkingxAIGrok 4.5vs ERNIE 4.5 21B ThinkingxAIGrok Build 0.1vs ERNIE 4.5 21B ThinkingxAIGrok 4.1 Fastvs ERNIE 4.5 21B ThinkingMetaMuse Spark 1.1vs ERNIE 4.5 21B ThinkingDeepSeekDeepSeek V4 Provs ERNIE 4.5 21B ThinkingDeepSeekDeepSeek V4 Flashvs ERNIE 4.5 21B ThinkingMiniMaxMiniMax M3vs ERNIE 4.5 21B ThinkingMoonshotAIKimi K3vs ERNIE 4.5 21B ThinkingMoonshotAIKimi K2.7 Codevs ERNIE 4.5 21B ThinkingZhipu AIGLM 5.2vs ERNIE 4.5 21B ThinkingQwenQwen3.7 Maxvs ERNIE 4.5 21B ThinkingQwenQwen3.7 Plusvs ERNIE 4.5 21B ThinkingQwenQwen3 Coder Nextvs ERNIE 4.5 21B ThinkingNVIDIANemotron 3 Ultravs ERNIE 4.5 21B ThinkingMistral AIMistral Small 4vs ERNIE 4.5 21B Thinking
Frequently Asked Questions about ERNIE 4.5 21B Thinking▼

Who created ERNIE 4.5 21B Thinking?

▼

ERNIE 4.5 21B Thinking was created by Baidu.

Is ERNIE 4.5 21B Thinking a reasoning model?

▼

Yes, ERNIE 4.5 21B Thinking is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.

Does ERNIE 4.5 21B Thinking support image or vision input?

▼

No, ERNIE 4.5 21B Thinking does not currently support image or vision input. It is a text-only model.

Does ERNIE 4.5 21B Thinking support audio?

▼

No, ERNIE 4.5 21B Thinking does not support audio input.

Is ERNIE 4.5 21B Thinking open source?

▼

ERNIE 4.5 21B Thinking is a proprietary model developed by Baidu. The model weights and training data are not publicly available.

Where can I use ERNIE 4.5 21B Thinking?

▼

You can chat with ERNIE 4.5 21B Thinking on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access ERNIE 4.5 21B Thinking through Baidu's own API or platform.

  • Home
  • Pricing
  • AI Models
  • Image models
  • Voice models
  • Video models
  • Rankings
  • New models
  • Model status
  • Multi-Model Chat
  • Voice Mode
  • Voice HUD
  • Web Search
  • Image Generation
  • Video Generation
  • Audio Generation
  • Transcription
  • Drive
  • Credentials
  • Sharing
  • Workspaces
  • Tasks
  • Memory
  • Agents
  • Subagents
  • Automations
  • Skills
  • idapt Code
  • Code Execution
  • Computers
  • Computer Use
  • Computer Assist · Soon
  • Containers · Soon
  • Cloud Computers
  • Local AI
  • AI Gateway
  • API & SDK
  • CLI
  • MCP
  • Tunnels
  • All features →
  • LLM cost calculator
  • Token counter
  • Context window checker
  • Can I run it
  • Model picker quiz
  • Savings finder
  • Video cost estimator
  • Text to speech cost
  • Transcription cost
  • API endpoint tester
  • All free tools →
  • Blog
  • Use cases
  • Comparisons
  • Best of
  • Skills
  • Learn
  • Changelog
  • Help center
  • FAQ
  • Privacy
  • Compare all models
  • Support
  • idapt Code
  • Developers
  • Quickstarts
  • API reference
  • API pricing
  • CLI
  • MCP
  • Downloads
  • Desktop
  • Badges and embeds
© idapt[email protected]TermsPrivacy PolicyLegal noticeReport content
X (Twitter)