Model family timeline
Last updated Mar 16, 2025
ERNIE model releases
A source-backed timeline for the ERNIE model family, collecting release dates, labs, access details, context windows, and major lifecycle changes.
4
Models
1
Labs
0
Open
4
Recent
4 models
ERNIE X1
AvailableBaiduProprietary
Baidu's reasoning model released alongside ERNIE 4.5 before the open ERNIE 4.5 weights.
Type
—
Params
Undisc.
Context
—
Top eval
—
Released
Mar 16, 2025
1.3y ago
—Undisc.— ctxMar 16, 2025
ERNIE 4.0
AvailableBaiduProprietary
Baidu's fourth-generation ERNIE flagship, announced with stronger understanding, generation, reasoning, and memory.
Type
—
Params
Undisc.
Context
—
Top eval
—
Released
Oct 17, 2023
2.7y ago
—Undisc.— ctxOct 17, 2023
ERNIE Bot
AvailableBaiduProprietary
Baidu's public chat assistant launch, built on the ERNIE foundation-model line.
Type
—
Params
Undisc.
Context
—
Top eval
—
Released
Mar 16, 2023
3.3y ago
—Undisc.— ctxMar 16, 2023
ERNIE 3.0 Titan
RetiredBaiduProprietary
Baidu's 260B-parameter ERNIE 3.0 Titan model, an early Chinese frontier-scale language model.
Type
Dense
Params
260B
Context
—
Top eval
—
Released
Dec 8, 2021
4.5y ago
Dense260B— ctxDec 8, 2021