LICENSE.txt
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1 LTX-2 Community License Agreement
2 License date: January 5, 2026
3
4
5 By using or distributing any portion or element of LTX-2, you agree
6 to be bound by this Agreement.
7
8 1. Definitions.
9
10 "Agreement" means the terms and conditions for the license, use,
11 reproduction, and distribution of LTX-2 and the Complementary
12 Materials, as specified in this document.
13
14 "Control" means the direct or indirect ownership of more than
15 fifty percent (50%) of the voting securities or other ownership
16 interests, or the power to direct the management and policies of
17 such Entity through voting rights, contract, or otherwise.
18
19 "Data" means a collection of information and/or content extracted
20 from the dataset used with LTX-2, including to train, pretrain,
21 or otherwise evaluate LTX-2. The Data is not licensed under this
22 Agreement.
23
24 "Derivatives of LTX-2" means all modifications to LTX-2, works
25 based on LTX-2, or any other model which is created or initialized
26 by transfer of patterns of the weights, parameters, activations or
27 output of LTX-2, to the other model, in order to cause the other
28 model to perform similarly to LTX-2, including – but not limited
29 to - distillation methods entailing the use of intermediate data
30 representations or methods based on the generation of synthetic
31 data by LTX-2 for training the other model. For clarity, Derivatives
32 of LTX-2 include: (i) any fine-tuned or adapted weights, parameters,
33 or checkpoints derived from LTX-2; (ii) derivative model architectures
34 that incorporate or are based upon LTX-2's architecture; and
35 (iii) any modified or extended versions of the Complementary
36 Materials. All intellectual property rights in Derivatives of LTX-2
37 shall be subject to the terms of this Agreement, and you may not
38 claim exclusive ownership rights in any Derivatives of LTX-2 that
39 would restrict the rights granted herein.
40
41 "Entity" means any individual, corporation, partnership, limited
42 liability company, or other legal entity. For purposes of this
43 Agreement, an Entity shall be deemed to include, on an aggregative
44 basis, all subsidiaries, affiliates, and other companies under
45 common Control with such Entity. When determining whether an Entity
46 meets any threshold under this Agreement (including revenue
47 thresholds), all subsidiaries, affiliates, and companies under
48 common Control shall be considered collectively.
49
50 "Harm" includes but is not limited to physical, mental,
51 psychological, financial and reputational damage, pain, or loss.
52
53 "Licensor" or "Lightricks" means the owner that is granting the
54 license under this Agreement. For the purposes of this Agreement,
55 the Licensor is Lightricks Ltd.
56
57 "LTX-2" means the large language models, text/image/video/audio/3D
58 generation models, and multimodal large language models and their
59 software and algorithms, including trained model weights, parameters
60 (including optimizer states), machine-learning model code,
61 inference-enabling code, training-enabling code, fine-tuning
62 enabling code, accompanying source code, scripts, documentation,
63 tutorials, examples, and all other elements of the foregoing
64 distributed and made publicly available by Lightricks (including,
65 for example, at https://github.com/Lightricks/LTX-2) for the LTX-2
66 model released on January 5, 2026. This license is applicable to
67 all LTX-2 versions released since January 5, 2026, and all future
68 releases of LTX-2 under this license.
69
70 "Output" means the results of operating LTX-2 as embodied in
71 informational content resulting therefrom.
72
73 "you" (or "your") means an individual or legal Entity licensing
74 LTX-2 in accordance with this Agreement and/or making use of LTX-2
75 for whichever purpose and in any field of use, including usage of
76 LTX-2 in an end-use application - e.g. chatbot, translator, image
77 generator.
78
79 2. Grant of License. Subject to the terms and conditions of this
80 Agreement, you are granted a non-exclusive, worldwide,
81 non-transferable and royalty-free limited license under Licensor's
82 intellectual property or other rights owned by Licensor embodied
83 in LTX-2 to use, reproduce, prepare, distribute, publicly display,
84 publicly perform, sublicense, copy, create derivative works of,
85 and make modifications to LTX-2, for any purpose, subject to the
86 restrictions set forth in Attachment A; provided however, that
87 Entities with annual revenues of at least $10,000,000 (the
88 "Commercial Entities") are required to obtain a paid commercial
89 use license in order to use LTX-2 and Derivatives of LTX-2,
90 subject to the terms and provisions of a different license (the
91 "Commercial Use Agreement"), as will be provided by the Licensor.
92 Commercial Entities interested in such a commercial license are
93 required to [contact Licensor](https://ltx.io/model/licensing).
94 Any commercial use of LTX-2 or Derivatives of LTX-2 by the
95 Commercial Entities not in accordance with this Agreement and/or
96 the Commercial Use Agreement is strictly prohibited and shall be
97 deemed a material breach of this Agreement. Such material breach
98 will be subject, in addition to any license fees owed to Licensor
99 for the period such Commercial Entity used LTX-2 (as will be
100 determined by Licensor), to liquidated damages, which will be paid
101 to Licensor immediately upon demand, in an amount equal to double
102 the amount that would otherwise have been paid by you for the
103 relevant period of time. Such amount reflects a reasonable estimation
104 of the losses and administrative costs incurred due to such breach.
105 You agree and understand that this remedy does not limit the Licensor's
106 right to pursue other remedies available at law or equity.
107
108 3. Distribution and Redistribution. You may host for third parties
109 remote access purposes (e.g. software-as-a-service), reproduce
110 and distribute copies of LTX-2 or Derivatives of LTX-2 thereof in
111 any medium, with or without modifications, provided that you meet
112 the following conditions:
113
114 (a) Use-based restrictions as referenced in paragraph 4 and all
115 provisions of Attachment A MUST be included as an enforceable
116 provision by you in any type of legal agreement (e.g. a
117 license) governing the use and/or distribution of LTX-2 or
118 Derivatives of LTX-2, and you shall give notice to subsequent
119 users you distribute to, that LTX-2 or Derivatives of LTX-2
120 are subject to paragraph 4 and Attachment A in their entirety,
121 including all use restrictions and acceptable use policies;
122
123 (b) You must provide any third party recipients of LTX-2 or
124 Derivatives of LTX-2 a copy of this Agreement, including all
125 attachments and use policies. Any Derivative of LTX-2 (as
126 defined in Section 1, including but not limited to fine-tuned
127 weights, modified training code, models trained on Outputs, or
128 any other derivative) must be distributed exclusively under
129 the terms of this Agreement with a complete copy of this
130 license included;
131
132 (c) You must cause any modified files to carry prominent notices
133 stating that you changed the files;
134
135 (d) You must retain all copyright, patent, trademark, and
136 attribution notices excluding those notices that do not
137 pertain to any part of LTX-2, Derivatives of LTX-2.
138
139 You may add your own copyright statement to your modifications and
140 may provide additional or different license terms and conditions -
141 respecting paragraph 3(a) - for use, reproduction, or distribution
142 of your modifications, or for any such Derivatives of LTX-2 as a
143 whole, provided your use, reproduction, and distribution of LTX-2
144 otherwise complies with the conditions stated in this Agreement,
145 and you provide a complete copy of this Agreement with any such
146 use, reproduction and distribution of LTX-2 and any Derivatives
147 thereof.
148
149 4. Use-based restrictions. The restrictions set forth in Attachment A
150 are considered Use-based restrictions. Therefore, you cannot use
151 LTX-2 and the Derivatives of LTX-2 in violation of the specified
152 restricted uses. You may use LTX-2 subject to this Agreement,
153 including only for lawful purposes and in accordance with the
154 Agreement. "Use" may include creating any content with, fine-tuning,
155 updating, running, training, evaluating and/or re-parametrizing
156 LTX-2. You shall require all of your users who use LTX-2 or a
157 Derivative of LTX-2 to comply with the terms of this paragraph 4.
158
159 5. The Output You Generate. Except as set forth herein, Licensor
160 claims no rights in the Output you generate using LTX-2. You are
161 accountable for input you insert into LTX-2, the Output you
162 generate and its subsequent uses. No use of the Output can
163 contravene any provision as stated in the Agreement.
164
165 6. Updates and Runtime Restrictions. To the maximum extent permitted
166 by law, Licensor reserves the right to restrict (remotely or
167 otherwise) usage of LTX-2 in violation of this Agreement, update
168 LTX-2 through electronic means, or modify the Output of LTX-2
169 based on updates. You shall undertake reasonable efforts to use
170 the latest version of LTX-2. Any use of the non-current version
171 of LTX-2 is done solely at your risk.
172
173 7. Export Controls and Sanctions Compliance. You acknowledge that
174 LTX-2, Derivatives of LTX-2 may be subject to export control laws
175 and regulations, including but not limited to the U.S. Export
176 Administration Regulations and sanctions programs administered by
177 the Office of Foreign Assets Control (OFAC). You represent and
178 warrant that you and any users of LTX-2 are not (i) located in,
179 organized under the laws of, or ordinarily resident in any country
180 or territory subject to comprehensive sanctions; (ii) identified
181 on any U.S. government restricted party list, including the
182 Specially Designated Nationals and Blocked Persons List; or
183 (iii) otherwise prohibited from receiving LTX-2 under applicable
184 law. You shall not export, re-export, or transfer LTX-2, directly
185 or indirectly, in violation of any applicable export control or
186 sanctions laws or regulations. You agree to comply with all
187 applicable trade control laws and shall indemnify and hold
188 Licensor harmless from any claims arising from your failure to
189 comply with such laws.
190
191 8. Trademarks and related. Nothing in this Agreement permits you to
192 make use of Licensor's trademarks, trade names, logos or to
193 otherwise suggest endorsement or misrepresent the relationship
194 between the parties; and any rights not expressly granted herein
195 are reserved by the Licensor.
196
197 9. Disclaimer of Warranty. Unless required by applicable law or
198 agreed to in writing, Licensor provides LTX-2 on an "AS IS" BASIS,
199 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
200 implied, including, without limitation, any warranties or
201 conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS
202 FOR A PARTICULAR PURPOSE. You are solely responsible for
203 determining the appropriateness of using or redistributing LTX-2
204 and Derivatives of LTX-2 and assume any risks associated with
205 your exercise of permissions under this Agreement.
206
207 10. Limitation of Liability. In no event and under no legal theory,
208 whether in tort (including negligence), contract, or otherwise,
209 unless required by applicable law (such as deliberate and grossly
210 negligent acts) or agreed to in writing, shall Licensor be liable
211 to you for damages, including any direct, indirect, special,
212 incidental, or consequential damages of any character arising as
213 a result of this Agreement or out of the use or inability to use
214 LTX-2 (including but not limited to damages for loss of goodwill,
215 work stoppage, computer failure or malfunction, or any and all
216 other commercial damages or losses), even if Licensor has been
217 advised of the possibility of such damages.
218
219 11. Accepting Warranty or Additional Liability. While redistributing
220 LTX-2 and Derivatives of LTX-2, you may, provided you do not
221 violate the terms of this Agreement, choose to offer and charge
222 a fee for, acceptance of support, warranty, indemnity, or other
223 liability obligations. However, in accepting such obligations,
224 you may act only on your own behalf and on your sole
225 responsibility, not on behalf of Licensor, and only if you agree
226 to indemnify, defend, and hold Licensor harmless for any liability
227 incurred by, or claims asserted against Licensor, by reason of
228 your accepting any such warranty or additional liability.
229
230 12. Governing Law. This Agreement and all relations, disputes, claims
231 and other matters arising hereunder (including non-contractual
232 disputes or claims) will be governed exclusively by, and construed
233 exclusively in accordance with, the laws of the State of New York.
234 To the extent permitted by law, choice of laws rules and the
235 United Nations Convention on Contracts for the International Sale
236 of Goods will not apply. For the purposes of adjudicating any
237 action or proceeding to enforce the terms of this Agreement, you
238 hereby irrevocably consent to the exclusive jurisdiction of, and
239 venue in, the federal and state courts located in the County of
240 New York within the State of New York. The prevailing party in
241 any claim or dispute between the parties under this Agreement
242 will be entitled to reimbursement of its reasonable attorneys'
243 fees and costs. You hereby waive the right to a trial by jury,
244 to participate in a class or representative action (including in
245 arbitration), or to combine individual proceedings in court or
246 in arbitration without the consent of all parties.
247
248 13. Term and Termination. This Agreement is effective upon your
249 acceptance and continues until terminated. Licensor may terminate
250 this Agreement immediately upon written notice to you if you
251 breach any provision of this Agreement, including but not limited
252 to violations of the use restrictions in Attachment A or
253 unauthorized commercial use. Upon termination: (a) all rights
254 granted to you under this Agreement will immediately cease;
255 (b) you must immediately cease all use of LTX-2 and Derivatives
256 of LTX-2; (c) you must delete or destroy all copies of LTX-2
257 and Derivatives of LTX-2 in your possession or control; and
258 (d) you must notify any third parties to whom you distributed
259 LTX-2 or Derivatives of LTX-2 of the termination. Sections 8-13,
260 and Section 15 shall survive termination of this Agreement.
261 Termination does not relieve you of any obligations incurred
262 prior to termination, including payment obligations under
263 Section 2. In addition, if You commence a lawsuit or other
264 proceedings (including a cross-claim or counterclaim in a lawsuit)
265 against Licensor or any person or entity alleging that LTX-2 or
266 any Output, or any portion of any of the foregoing, infringe any
267 intellectual property or other right owned or licensable by you,
268 then all licenses granted to you under this Agreement shall
269 terminate as of the date such lawsuit or other proceeding is filed.
270
271 14. Disputes and Arbitration. All disputes arising in connection with
272 this Agreement shall be finally settled by arbitration under the
273 Rules of Arbitration of the International Chamber of Commerce
274 ("ICC Rules"), by one (1) arbitrator appointed in accordance with
275 the ICC Rules. The seat of arbitration shall be New York, NY, USA,
276 and the proceedings shall be conducted in English. The arbitrator
277 shall be empowered to grant any relief that a court could grant.
278 Judgment on the arbitration award may be entered by any court
279 having jurisdiction thereof. Each party waives its right to a
280 trial by jury and to participate in any class or representative
281 action.
282
283 15. If any provision of this Agreement is held to be
284 invalid, illegal
285 or unenforceable, the remaining provisions shall be unaffected
286 thereby and remain valid as if such provision had not been set
287 forth herein.
288
289 END OF TERMS AND CONDITIONS
290
291 ATTACHMENT A: Use Restrictions
292
293 When using the Outputs, LTX-2 and any Derivatives thereof, you
294 will comply with the Acceptable Use Policy. In addition, you
295 agree not to use the Outputs, LTX-2 or its Derivatives in any
296 of the following ways:
297
298 1. In any way that violates any applicable national, federal,
299 state, local or international law or regulation;
300
301 2. For the purpose of exploiting, Harming or attempting to
302 exploit or Harm minors in any way;
303
304 3. To generate or disseminate false information and/or content
305 with the purpose of Harming others;
306
307 4. To generate or disseminate personal identifiable information
308 that can be used to Harm an individual;
309
310 5. To generate or disseminate information and/or content (e.g.
311 images, code, posts, articles), and place the information
312 and/or content in any context (e.g. bot generating tweets)
313 without expressly and intelligibly disclaiming that the
314 information and/or content is machine generated;
315
316 6. To defame, disparage or otherwise harass others;
317
318 7. To impersonate or attempt to impersonate (e.g. deepfakes)
319 others without their consent;
320
321 8. For fully automated decision making that adversely impacts an
322 individual's legal rights or otherwise creates or modifies a
323 binding, enforceable obligation;
324
325 9. For any use intended to or which has the effect of
326 discriminating against or Harming individuals or groups based
327 on online or offline social behavior or known or predicted
328 personal or personality characteristics;
329
330 10. To exploit any of the vulnerabilities of a specific group of
331 persons based on their age, social, physical or mental
332 characteristics, in order to materially distort the behavior
333 of a person pertaining to that group in a manner that causes
334 or is likely to cause that person or another person physical
335 or psychological Harm;
336
337 11. For any use intended to or which has the effect of
338 discriminating against individuals or groups based on legally
339 protected characteristics or categories;
340
341 12. To provide medical advice and medical results interpretation;
342
343 13. To generate or disseminate information for the purpose to be
344 used for administration of justice, law enforcement,
345 immigration or asylum processes, such as predicting an
346 individual will commit fraud/crime commitment (e.g. by text
347 profiling, drawing causal relationships between assertions
348 made in documents, indiscriminate and arbitrarily-targeted use);
349
350 14. To generate and/or disseminate malware (including – but not
351 limited to – ransomware) or any other content to be used for
352 the purpose of harming electronic systems;
353
354 15. To engage in, promote, incite, or facilitate discrimination
355 or other unlawful or harmful conduct in the provision of
356 employment, employment benefits, credit, housing, or other
357 essential goods and services;
358
359 16. To engage in, promote, incite, or facilitate the harassment,
360 abuse, threatening, or bullying of individuals or groups of
361 individuals;
362
363 17. For military, warfare, nuclear industries or applications,
364 weapons development, or any use in connection with activities
365 that may cause death, personal injury, or severe physical or
366 environmental damage;
367
368 18. For commercial use only: To train, improve, or fine-tune any
369 other machine learning model, artificial intelligence system,
370 or competing model, except for Derivatives of LTX-2 as
371 expressly permitted under this Agreement;
372
373 19. To circumvent, disable, or interfere with any technical
374 limitations, safety features, content filters, or use
375 restrictions implemented in LTX-2 by Licensor;
376
377 20. To use LTX-2 or Derivatives of LTX-2 in any product, service,
378 or application that directly competes with Licensor's
379 commercial products or services, or is designed to replace or
380 substitute Licensor's offerings in the market, without
381 obtaining a separate commercial license from Licensor.
382