C

JT-4.1 Flash 236B A21B

Jul 2026
CJT-4.1 Flash 236B A21B
Compare in
on
—per task?
API price not publicprice
—output speed?
262Kcontext

Rankingin non-thinking mode?

Strong at

B
Coding#46 of 132Agents & work tasks#59 of 175Reasoning#131 of 334Science#85 of 312Long context#116 of 273Knowledge#89 of 318
C
Vision#85 of 124

Benchmarks

all categories
Chat & Knowledge
Humanity's Last Exam17.8#131
AA Omniscience Index-8.8#89
CritPt (physics)0#179
AA Intelligence Index 4.3.2≈27.3#65
AA Omniscience · Accuracy24.3#122
AA Omniscience · Hallucination Rate43.7#69
AA-LCR (long context) 1.171.3#116
GPQA Diamond84.5#85
Coding
Terminal-Bench 2.159.6#55
Agents & Tool Use
GDPval-AA (work tasks) 2.131.1#59
Vision & Documents
MMMU-Pro (vision)64.1#87

FAQ

How much does JT-4.1 Flash 236B A21B cost?›

There is no per-unit API price: API price not public.

Is JT-4.1 Flash 236B A21B free to use?›

There is no free API.

How good is JT-4.1 Flash 236B A21B, and what is it best at?›

#131 of 334 in Chat & Knowledge, #46 of 132 in Coding, #40 of 133 in Agents & Tool Use, #85 of 124 in Vision & Documents.

Is JT-4.1 Flash 236B A21B better than Gemini 3.6 Flash?›

On AA Intelligence Index 4.3.2, JT-4.1 Flash 236B A21B scores 33.9 vs 34 — about the same.

What is the context window of JT-4.1 Flash 236B A21B?›

262K tokens.

When was JT-4.1 Flash 236B A21B released? Is there a newer version?›

Released 2026-07-09. It is the current version in its line.

Is JT-4.1 Flash 236B A21B open source?›

No, JT-4.1 Flash 236B A21B is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can JT-4.1 Flash 236B A21B read images?›

It accepts text and images as input.

What is JT-4.1 Flash 236B A21B?›

JT-4.1 Flash 236B A21B is a closed language model from China Mobile, released Jul 2026.

What are the best alternatives to JT-4.1 Flash 236B A21B?›

GPT-6 Luna (better), MiMo v2.6 Pro (open weights).