Baidu Releases ERNIE 5.5 Flash Preview, Open-Sourcing November 25
On November 11, Baidu officially released ERNIE 5.5 Flash Preview, the latest open-weight foundation model in the ERNIE family and the first post-trained version of ERNIE-5.5-Flash-Base, which was open-sourced last week. It is also the first official model built on a new architecture designed for efficient inference.
Confirmed
- Text-only MoE model with 280B total parameters and 14B activated per token
- 1 million token context window, output speed exceeding 200 token/s
- Officially claimed to be stronger in coding, 3D modeling, knowledge work, and content creation, with impressive results on benchmarks like Terminal-Bench
- According to Zhidongxi and 赛博禅心, it outperforms DeepSeek on 14 tests
- Available for free trial on OpenRouter
- Scheduled to be open-sourced on November 25
Why it matters
- This is the first official model under Baidu's new architecture, marking the ERNIE series' push toward open weights and efficient inference
- The combination of a large context window (1M) and high output speed, along with the upcoming open-source release, could lower deployment and usage barriers for developers and directly shake up the competitive landscape of open-source models (especially as a DeepSeek rival).
2026-11-11 ~ 2026-11-11 · 9 related posts
- Episode 1: Baidu Open-Sources ERNIE 5.5 Flash Base: 280B MoE with 14B Active Params and 1M Context(2026-11-05, 22 posts)
- Episode 2: Baidu Releases ERNIE 5.5 Flash Preview, Open-Sourcing November 25(2026-11-11, 9 posts)
Primary sources
- Baidu launches ERNIE 5.5 Flash Preview: 280B params, 14B active, 1M context, weights open by Nov 25 — Baidu_Inc ·
- Baidu's ERNIE 5.5 Flash Preview lands free on OpenRouter: 280B MoE with 1M context at 200 tok/s — Baidu_Inc ·
- Baidu launches ERNIE 5.5 Flash: 280B params, 14B active, coding-first, soon open source — 量子位 ·
- [source] Baidu launches ERNIE 5.5 Flash Preview: 280B params, 14B active, 1M context, weights open by Nov 25 — Baidu_Inc · 2026-11-11
- Baidu releases ERNIE 5.5 Flash Preview: 280B MoE, 14B active, 200 tok/s — 赛博禅心 · 2026-11-11
- [source] Baidu's ERNIE 5.5 Flash Preview lands free on OpenRouter: 280B MoE with 1M context at 200 tok/s — Baidu_Inc · 2026-11-11
- Baidu releases ERNIE 5.5 Flash Preview: 280B params, 14B active, beats DeepSeek on 14 benchmarks — 智东西 · 2026-11-11
- [source] Baidu launches ERNIE 5.5 Flash: 280B params, 14B active, coding-first, soon open source — 量子位 · 2026-11-11
- Baidu Open-Sources ERNIE 5.5 Flash Preview: Coded a Wuxia Game for 11 Hours Straight — xiaohu · 2026-11-11
- ERNIE 5.5 trained on 14M executable coding tasks; scores 46.5 on Terminal-Bench 4.0 — xiaohu · 2026-11-11