Is there a difference between the calligraphy effect of the commitment letter and the contract commitment letter?

Have legal effect. The letter of commitment is actually a contract with legal effect. An effective promise must meet the following three conditions at the same time: 1, which reflects the true wishes of the parties. The content of the letter of commitment shall be the expression of the true meaning of the parties, and shall not be forced, threatened, lured or deceived. 2. No violation of relevant laws and regulations. The contents of the letter of commitment must comply with the provisions of the law and cannot violate the prohibitive provisions of laws or administrative regulations, otherwise the letter of commitment may be invalid. 3. Do not infringe upon the interests of others. The promisor can only dispose of what he has the right to dispose of, but not infringe upon the legitimate interests of others. Whether the letter of commitment has legal effect mainly depends on whether it meets the above three conditions. Of course, in practice, only a letter of commitment that expresses the true meaning of the parties concerned and does not violate the relevant provisions of the law or infringe upon the interests of others is valid and will be protected by law. Legal provisions: Article 465 of the Civil Code of People's Republic of China (PRC), a legally established contract shall be protected by law. A legally established contract is legally binding only on the parties, except as otherwise provided by law. People's Republic of China (PRC) Civil Code: Article 479 Definition of Acceptance An acceptance is an expression of the intention of the offeree to agree to an offer. Article 480 of the Civil Code of People's Republic of China (PRC) promises in the form of notification; However, unless the trading habit or offer indicates that a promise can be made through behavior.