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The README of Moonshot AI’s Kimi-K2 GitHub repository, at the repository’s initial commit dated 11 July 2025, introduced two model variants, Kimi-K2-Base and Kimi-K2-Instruct, and pointed to their checkpoints on Hugging Face. Copy claim link
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Machine-checked, not reviewed by an editor Stated in source Supported
Supporting evidence: primary · 1 source; Context: primary · 1 source
Date 2025-07-11 · publication Scope and limits The README’s description of the variants is the developer’s own; performance tables in the README are out of scope.
The evidence 03 primary source Supports the claim
Kimi-K2 repository README ↗ MoonshotAI (GitHub) · 2025-07-11
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Source excerpt “The foundation model, a strong start for researchers and builders who want full control for fine-tuning and custom solutions.” Location in source README, “Model Variants”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-27
Source details and check notes Authors Moonshot AI Version Dated page, retrieved on 2026-10-27 (SHA-256 24569c90a1986572fdd626d6527149bfe86561f6fa2512412c33401f772ab676) directly from the publisher. Version: d778e270ff3551ef3e42a085dd474760501a95b7. README at the initial commit of 11 July 2025; later edits not inspected. Canonical address Open the canonical source ↗ Accessed 2026-10-27 Language English (en) Attribution Moonshot AI, “Kimi-K2 repository README”, 2025-07-11. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Candidate pack passage, Chinese frontier-AI institutions, second collection (research/china-labs-2). The quotation (19 words) matched the retrieved text on 2026-10-27 and again in a fresh retrieval the same day. Read directly from the publisher. Matching ignored differences of whitespace, case, quotation marks, apostrophes, dashes and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-27, item K040) re-read the record’s sources and judged it partly supported; its corrections were applied at admission. No human editorial review. primary source Supports the claim
Kimi-K2 repository README ↗ MoonshotAI (GitHub) · 2025-07-11
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Source excerpt “The post-trained model best for drop-in, general-purpose chat and agentic experiences.” Location in source README, “Model Variants”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-27
Source details and check notes Authors Moonshot AI Version Dated page, retrieved on 2026-10-27 (SHA-256 24569c90a1986572fdd626d6527149bfe86561f6fa2512412c33401f772ab676) directly from the publisher. Version: d778e270ff3551ef3e42a085dd474760501a95b7. README at the initial commit of 11 July 2025; later edits not inspected. Canonical address Open the canonical source ↗ Accessed 2026-10-27 Language English (en) Attribution Moonshot AI, “Kimi-K2 repository README”, 2025-07-11. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Candidate pack passage, Chinese frontier-AI institutions, second collection (research/china-labs-2). The quotation (11 words) matched the retrieved text on 2026-10-27 and again in a fresh retrieval the same day. Read directly from the publisher. Matching ignored differences of whitespace, case, quotation marks, apostrophes, dashes and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-27, item K040) re-read the record’s sources and judged it partly supported; its corrections were applied at admission. No human editorial review. primary source Context only
Kimi-K2 repository README ↗ MoonshotAI (GitHub) · 2025-07-11
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Source excerpt “You are Kimi, an AI assistant created by Moonshot AI.” Location in source README, “Model Usage” example system prompt
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-27
Source details and check notes Authors Moonshot AI Version Dated page, retrieved on 2026-10-27 (SHA-256 24569c90a1986572fdd626d6527149bfe86561f6fa2512412c33401f772ab676) directly from the publisher. Version: d778e270ff3551ef3e42a085dd474760501a95b7. README at the initial commit of 11 July 2025; later edits not inspected. Canonical address Open the canonical source ↗ Accessed 2026-10-27 Language English (en) Attribution Moonshot AI, “Kimi-K2 repository README”, 2025-07-11. Reuse No open redistribution licence asserted. Bibliographic metadata, editorial paraphrases and short attributed quotations (at most 50 words each). Recheck terms before wider redistribution. Check notes Candidate pack passage, Chinese frontier-AI institutions, second collection (research/china-labs-2). The quotation (10 words) matched the retrieved text on 2026-10-27 and again in a fresh retrieval the same day. Read directly from the publisher. Matching ignored differences of whitespace, case, quotation marks, apostrophes, dashes and Unicode compatibility forms, so the source’s typography can differ. A cross-family machine check (2026-10-27, item K040) re-read the record’s sources and judged it partly supported; its corrections were applied at admission. No human editorial review. Status and meaning Editorial status. Not reviewed by an editor . An exploratory record that no editor has accepted. This status does not say whether a person has read any linked passage. Each evidence record above shows how it was checked.
Relation. Publication of a specific document or version. Publication of a policy is not evidence of implementation.
Date. Date of the repository’s initial commit, which contains the README (11 July 2025, 14:28 UTC). The cross-family check found that GitHub’s repository record gives a creation time of 3 July 2025; a commit date and a repository creation date are different kinds of date, and neither establishes when the repository or the weights became public. The Hugging Face repository moonshotai/Kimi-K2-Instruct also shows commits from 11 July 2025.
Record ID c2-moonshot-k2-readme