DeepSeek-V3.1 · context window128K context

Valid from

2025-08-21

Valid until

still holds

Published

2025-08-21

Recorded by AsOf

2026-11-04

Checked

2026-11-04 · its source page states the value and the date

Confidence

0.95

Sources

“deepseek-reasoner → thinking mode 🧵 128K context for both”— what the page says, read 2026-11-04

• DeepSeek-V3.1 Release | DeepSeek API Docsprimary · api-docs.deepseek.com · 2025-08-21

/claim/clm_38B805C02EDD.md/v1/claims/clm_38B805C02EDDtimelinesubmit a correction