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ERNIE 4.5 21B A3B Thinking API Pricing 2026

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Last updated: February 21, 2026 at 08:07 AM

Overview

ERNIE 4.5 21B A3B Thinking was released on October 9, 2025. Pricing starts at $0.070 per million input tokens and $0.280 per million output tokens. The model supports a context window of up to 131K tokens. API access is available through Baidu.

Context Window
131K
tokens
Pricing
Input$0.070
Output$0.280
per 1M tokens
Speed
Output-
TTFT-
median latency
Capabilities
ReasoningTools

Pricing Comparison

Compare ERNIE 4.5 21B A3B Thinking with 10 similar models by price.

Current Pricing (per 1M tokens)

11 models

Provider
Model
Input $/M
Output $/M
Coding
MMLU
GPQA
Context
Actions
$0.070
$0.280
131,072
Try
$0.050
$0.200
16.3
63.3
41.0
131,072
Try
$0.050
$0.400
20.2
64.3
45.2
32,000
Try
$0.051
$0.340
32,768
Try
$0.060
$0.400
45.2
202,752
Try
$0.060
$0.180
27.5
68.1
50.5
131,072
Try
$0.060
$0.240
28.0
67.5
47.0
40,960
Try
$0.060
$0.140
23.1
71.4
57.5
16,384
Try
$0.060
$0.240
16.7
59.0
43.3
300,000
Try
$0.060
$0.060
4,096
Try
$0.070
$0.200
34.5
64.9
43.9
131,072
Try

* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.

Compare Providers

ERNIE 4.5 21B A3B Thinking is available from multiple providers with different pricing and availability.

1
Providers
$0.070
Cheapest Input/M
$0.280
Cheapest Output/M
Novita
Best Price

Provider Pricing

1 models

Provider
Input $/M
Output $/M
Cache Read $/M
Cache Write $/M
Uptime
Novita
Novita
Best Price
$0.070
$0.280
-
-
-
Provider pricing data sourced from OpenRouter and Helicone

Community Rankings

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Cost vs. Quality

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Frequently Asked Questions

ERNIE 4.5 21B A3B Thinking costs $0.000070 per 1,000 input tokens and $0.000280 per 1,000 output tokens.
ERNIE 4.5 21B A3B Thinking is available from 1 provider(s). Novita offers the best price.
We compare ERNIE 4.5 21B A3B Thinking with 10 similarly-priced models. See the benchmark scatter plot above to compare quality vs cost.

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