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Baidu: ERNIE 4.5 21B A3B Thinking

Baidu: ERNIE 4.5 21B A3B Thinking is a cost-efficient model with standard context support, suited to advanced reasoning for enterprise teams.

Try Baidu: ERNIE 4.5 21B A3B Thinking with your team

Last reviewed: 2026-04-28

Context Window
131,072
Input / 1M
$0.11
Output / 1M
$0.42

What can you do with Baidu: ERNIE 4.5 21B A3B Thinking?

Practical ways teams can use Baidu: ERNIE 4.5 21B A3B Thinking inside governed AI workflows.

01

Summarize long documents with Baidu: ERNIE 4.5 21B A3B Thinking

Condense contracts, policies, technical specs, RFPs, and research reports into decision-ready summaries with Baidu: ERNIE 4.5 21B A3B Thinking.

02

Support finance planning with Baidu: ERNIE 4.5 21B A3B Thinking

Draft budget narratives, explain spend drivers, create forecast assumptions, and summarize vendor costs with Baidu: ERNIE 4.5 21B A3B Thinking.

03

Prepare legal and compliance reviews with Baidu: ERNIE 4.5 21B A3B Thinking

Extract obligations, flag risky clauses, compare policy language, and prepare review checklists with Baidu: ERNIE 4.5 21B A3B Thinking.

04

Create presentations with Baidu: ERNIE 4.5 21B A3B Thinking

Turn notes, research, and meeting outcomes into structured slide outlines, speaker notes, and executive narratives with Baidu: ERNIE 4.5 21B A3B Thinking.

05

Code and debug with Baidu: ERNIE 4.5 21B A3B Thinking

Draft features, explain unfamiliar code, generate tests, review pull requests, and reason through implementation tradeoffs with Baidu: ERNIE 4.5 21B A3B Thinking.

06

Analyze spreadsheets with Baidu: ERNIE 4.5 21B A3B Thinking

Interpret CSV exports, explain variance, generate formulas, and identify operational or financial patterns with Baidu: ERNIE 4.5 21B A3B Thinking.

07

Draft customer communications with Baidu: ERNIE 4.5 21B A3B Thinking

Create support replies, sales follow-ups, onboarding emails, renewal messages, and account updates with Baidu: ERNIE 4.5 21B A3B Thinking.

08

Build workflow automations with Baidu: ERNIE 4.5 21B A3B Thinking

Plan agent steps, transform data between tools, create structured outputs, and support repeatable operations with Baidu: ERNIE 4.5 21B A3B Thinking.

09

Research competitors and markets with Baidu: ERNIE 4.5 21B A3B Thinking

Synthesize market signals, positioning, pricing context, customer segments, and competitive risks with Baidu: ERNIE 4.5 21B A3B Thinking.

10

Create knowledge-base answers with Baidu: ERNIE 4.5 21B A3B Thinking

Answer employee questions from internal policies, product docs, training material, and operating procedures with Baidu: ERNIE 4.5 21B A3B Thinking.

11

Improve security reviews with Baidu: ERNIE 4.5 21B A3B Thinking

Classify risk, draft incident summaries, review access patterns, and create remediation action lists with Baidu: ERNIE 4.5 21B A3B Thinking.

12

Generate product and marketing copy with Baidu: ERNIE 4.5 21B A3B Thinking

Create landing-page drafts, positioning variants, launch messaging, ad concepts, and campaign briefs with Baidu: ERNIE 4.5 21B A3B Thinking.

Why this model

Baidu: ERNIE 4.5 21B A3B Thinking is available in Remova as a standard context option with $0.11 per 1M tokens input pricing, $0.42 per 1M tokens output pricing, and text->text modality support for enterprise AI operations.

  • Baidu: ERNIE 4.5 21B A3B Thinking offers standard context capacity for enterprise prompts and documents.
  • Current Remova pricing band is cost-efficient: $0.11 per 1M tokens input and $0.42 per 1M tokens output.
  • Best-fit workloads include: Advanced reasoning.
  • Keep audit logs enabled for high-impact use cases.

At a glance

Model ID
baidu/ernie-4.5-21b-a3b-thinking
Context Window
131,072 tokens
Modality
text->text
Input Modalities
text
Output Modalities
text
Input Price
$0.11 per 1M tokens
Output Price
$0.42 per 1M tokens
Provider
Baidu
Listing Date
2025-10-09

Strengths

  • Baidu: ERNIE 4.5 21B A3B Thinking is suited for advanced reasoning.
  • Supports standard context for multi-step prompts and larger working sets.
  • Pricing profile is cost-efficient, enabling predictable workload routing decisions.
  • Can be paired with policy guardrails for safer deployment at scale.

Tradeoffs

  • Prompt standards are still needed to keep output quality consistent across teams.
  • Standard context limits may require chunking or retrieval strategies for large documents.
  • Low-cost tiers can still underperform on high-consequence decisions without escalation paths.
  • Text-only modality can limit workflows that rely on image, audio, or document interpretation.

Best for

  • Baidu: ERNIE 4.5 21B A3B Thinking for complex analysis and long-form decision support.
  • Baidu: ERNIE 4.5 21B A3B Thinking for governed enterprise assistant workflows across teams.
  • Baidu: ERNIE 4.5 21B A3B Thinking for governed enterprise assistant workflows across teams.
  • Baidu: ERNIE 4.5 21B A3B Thinking for governed enterprise assistant workflows across teams.

Rollout checklist

  • Define where Baidu: ERNIE 4.5 21B A3B Thinking is default vs. fallback in your routing policy.
  • Enable role-based access and policy checks before opening access broadly.
  • Set spend guardrails by team and monitor weekly token consumption.
  • Start with approved teams, then expand in controlled waves.
  • Re-run quality and cost benchmarks monthly as newer releases appear.

Related models

Explore adjacent model profiles for routing and benchmarking decisions.

Free Resource

Where Should Your Team Start with AI?

Tell us your industry and team size. We'll tell you which AI use cases will save the most time with the least setup.

You get

A shortlist of AI use cases ranked by impact and effort for your situation.

Tuning notes

frequency_penalty

Tune repetition control for long responses in multi-step workflows.

include_reasoning

Enable only where reasoning traces add operational value or review quality.

max_tokens

Set completion limits to avoid unpredictable long-output spend.

presence_penalty

Use carefully when expanding idea diversity in exploration-heavy prompts.

Free Assessment

What Could Go Wrong?

5 questions about how your company uses AI today. We'll show you the risks most companies miss until it's too late.

You get

A risk breakdown with the 3 things you should fix first.

Book demo
Knowledge Hub

Baidu: ERNIE 4.5 21B A3B Thinking FAQs

Choose Baidu: ERNIE 4.5 21B A3B Thinking when the workload aligns with advanced reasoning and quality targets justify its pricing profile.
It depends on workload mix. Most organizations use routing policies so routine traffic stays on lower-cost tiers.
Validate quality on real internal prompts, token efficiency, latency, and policy compliance behavior.

Deploy This Model With Governance

Use policy controls, role-based access, and budget guardrails before enabling advanced model tiers at scale.

Try Baidu: ERNIE 4.5 21B A3B Thinking with your team