New feature X Severity: low
X API v2 supports long-form posts up to 25,000 characters
What changed
The X API changelog records on August 9, 2024 that long-form post creation is supported in X API v2. On August 20, 2024 it states the maximum length for these posts rose from 4k to 25k characters.
What it means
Schedulers can create long-form posts through the API instead of being limited to the standard length.
Who is affected
Developers of scheduling tools, and users who want to publish long posts. Who may post long-form (for example Premium status) is not stated in this changelog entry.
What to do
Check the posting account's eligibility before offering long-form posting, since the entry does not state who qualifies.
Primary sources
Checked against the source 26 Oct 2026
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