> Baidu has 4 models on The Model Index, from ERNIE 4.0 (Oct 2023) to ERNIE 5.0 (13 Nov 2025). All are closed models.

[Models](https://themodelindex.org/models/) /[Labs](https://themodelindex.org/labs/) /

Baidu

Lab · 4 models · since Oct 2023

# Baidu

Baidu has 4 models on The Model Index, from ERNIE 4.0 (Oct 2023) to ERNIE 5.0 (13 Nov 2025). All are closed models.

4

models tracked

0 open · 4 closed

–

no model scored yet

13 Nov 2025

latest release

ERNIE 5.0

2

current versions

2 replaced by newer ones

## Every model · newest first

| | MODEL | RELEASED | WEIGHTS | INDEX SCORE | INPUT $/M | OUTPUT $/M | CONTEXT |
| --- | --- | --- | --- | --- | --- | --- | --- |
| | [ERNIE 5.0](https://themodelindex.org/models/ernie-5-0/) | 13 Nov 2025 | CLOSED | not scored yet | – | – | – |
| | [ERNIE 4.5 replaced](https://themodelindex.org/models/ernie-4-5/) | 16 Mar 2025 | CLOSED | not scored yet | – | – | – |
| | [ERNIE X1](https://themodelindex.org/models/ernie-x1/) | 16 Mar 2025 | CLOSED | not scored yet | – | – | – |
| | [ERNIE 4.0 replaced](https://themodelindex.org/models/ernie-4-0/) | 17 Oct 2023 | CLOSED | not scored yet | – | – | – |

Index score is fitted from independent evaluations and scaled so GPT-4 = 100; a striped bar is an estimate for a model not yet independently tested. Prices are list prices per million tokens.

## Release history · 4 announcements

[The Race →](https://themodelindex.org/race/)

| DATE | RELEASE | KIND | SOURCE |
| --- | --- | --- | --- |
| 13 Nov 2025 | ERNIE 5.0 | Flagship | no link |
| 16 Mar 2025 | ERNIE X1 | Reasoning | no link |
| 16 Mar 2025 | ERNIE 4.5 | Flagship | no link |
| 17 Oct 2023 | ERNIE 4.0 | Flagship | no link |

Dates come from each lab's own announcement, linked where one exists.

---
Source: https://themodelindex.org/labs/baidu/ · The Model Index · data as of 2026-10-01