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ERNIE 5 Models by Baidu AI

Baidu AIProprietary
2 models2026Up to 128K ctxFrom $0.59/1M input

About

ERNIE 5 is Baidu's fifth-generation ERNIE model family. ERNIE 5.0 (announced Feb 2026) is a 2.4T-parameter fully multimodal model. ERNIE 5.1 (released May 9, 2026) is a lighter model at approximately 800B total parameters, achieving comparable frontier performance at 6% of the pre-training compute cost.

Specifications(2 models)

ERNIE 5 model specifications comparison
ModelReleasedContextParametersVisionMultimodalReasoningFn CallingTool Use
ERNIE 5.12026-05128k—NoNoNoYesYes
ERNIE 5.02026-01128K2.4TYesYesYesYesYes

Available From(1 provider)

Baidu Qianfan

Pricing

ERNIE 5 model pricing by provider
ModelProviderInput / 1MOutput / 1MType
ERNIE 5.1Baidu Qianfan$0.59$2.65Serverless
ERNIE 5.0Baidu Qianfan$0.89$3.54Serverless

Frequently Asked Questions

What is ERNIE 5 used for?
ERNIE 5 is used for vision and multimodal work, reasoning, and agent workflows and tool use. The family description and listed model capabilities point to those workloads as the best fit.
How does ERNIE 5 compare to ERNIE 4.5?
ERNIE 5 by Baidu AI is strongest where you need vision and multimodal work, while ERNIE 4.5 by Baidu AI is the closest related family to check for vision and multimodal work. ERNIE 5 has 2 listed variants and reaches up to 128K context, while ERNIE 4.5 reaches up to 128K context, so compare the specs and pricing tables before choosing a production model.
Which ERNIE 5 model should I use?
For the lowest listed input price, start with ERNIE 5.1 through Baidu Qianfan at $0.59/1M input tokens. For the most capable/latest local choice, evaluate ERNIE 5.0 with 128K context and reasoning, tool use, function calling, and multimodal inputs.

Models(2)

ERNIE 5.1

2026-05128k1 provider

ERNIE 5.0

2026-01128K2.4T1 provider
MultimodalReasoning