Baidu: ERNIE 4.5 21B A3B

Public pricingIntelligence 79/100Medium memoryOutils

Baidu: ERNIE 4.5 21B A3B est un modèle texte conçu pour compréhension vision-langage. Il associe la gestion multimodale des entrées, un contexte de 120K tokens et un profil à faible coût pour un travail fiable sur vision-language understanding and content analysis.

Input

$0.07/1M

Output

$0.28/1M

Cached

$0.01/1M

Batch

$0.04/1M

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Technical specifications

ERNIE 4.5 21B A3B at a glance.

Memory

120,000

tokens

Max reply

8,000

tokens

Memory tier

Medium

a long report or a codebase file

Tokenizer

—

Released

Jun 2025

Training cutoff

Feb 2025

Availability

Public pricing

Status

active

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick ERNIE 4.5 21B A3B

  • Agentic workflows that call tools or APIs.
  • High-volume workloads where unit cost matters.

When to look elsewhere

  • Your workload involves images — pick a vision-capable model instead.

Alternatives

Similar models to compare.

FAQ

ERNIE 4.5 21B A3B — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

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At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, ERNIE 4.5 21B A3B costs roughly $16 per month. Input is $0.07 /1M tokens and output is $0.28 /1M tokens.
ERNIE 4.5 21B A3B has a 120,000-token context window (medium memory — a long report or a codebase file). That means you can fit about 22,500 words of input and history in a single call.
Beyond text generation, ERNIE 4.5 21B A3B supports calling functions / tools, strict JSON output, fine-tuning on your own data. It streams replies by default.
ERNIE 4.5 21B A3B was released in June 2025, with training data cut off around February 2025.
Models in a similar class include ERNIE 4.5 21B A3B Thinking, ERNIE 4.5 VL 28B A3B, ERNIE 4.5 300B A47B. The "Similar models" section below this FAQ links into each.

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