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A Chinese-language page on ByteDance Seed's website, dated 22 January 2025 and titled 'Doubao 1.5pro - Doubao Team', describes the Doubao-1.5-pro model as using a mixture-of-experts architecture. Copy claim link
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Machine-checked, not reviewed by an editor Stated in source Supported
Supporting evidence: primary · 1 source
Date 2025-01-22 · publication Scope and limits The page names 'Doubao Team' as its author and is hosted on seed.bytedance.com; the relation between that name and the Seed team in January 2025 is not established beyond the hosting. The page's performance and cost statements are not recorded. Doubao-1.5-pro is described, not released as weights.
The evidence 03 primary source Supports the claim
Doubao 1.5pro - Doubao Team ↗ ByteDance Seed (字节跳动 Seed), seed.bytedance.com · 2025-01-22 · In Simplified Chinese (zh-Hans)
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Source excerpt “2025.01.22” Location in source Page header, date line
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-27
Source details and check notes Authors Doubao Team Version Dated page, retrieved on 2026-10-27 (SHA-256 45912faf48b7d2a5de9e598e701bbac17f59996f947f105777de01d65550176f) directly from the publisher. Page dated 2025.01.22 on its face, read as it stood on 27 October 2026; earlier wording not authenticated. Its wording can change; earlier wording is not authenticated. English title (machine translation): “Doubao-1.5-pro”. Canonical address Open the canonical source ↗ Accessed 2026-10-27 Language Simplified Chinese (zh-Hans) Attribution Doubao Team, “Doubao 1.5pro - Doubao Team”, 2025-01-22. 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 (1 words), a part of a longer passage that the pack joined across separate fields of the page, 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. The pack had joined this field with others of the same page into one quotation; at admission each field became its own quotation (cross-family check, 2026-10-27). No human editorial review. primary source Supports the claim
Doubao 1.5pro - Doubao Team ↗ ByteDance Seed (字节跳动 Seed), seed.bytedance.com · 2025-01-22 · In Simplified Chinese (zh-Hans)
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Source excerpt “模型使用 MoE 架构，并通过训练-推理一体化设计” Location in source Opening paragraph, below the heading “Doubao-1.5-pro”
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-27
Source details and check notes Authors Doubao Team Version Dated page, retrieved on 2026-10-27 (SHA-256 45912faf48b7d2a5de9e598e701bbac17f59996f947f105777de01d65550176f) directly from the publisher. Page dated 2025.01.22 on its face, read as it stood on 27 October 2026; earlier wording not authenticated. Its wording can change; earlier wording is not authenticated. English title (machine translation): “Doubao-1.5-pro”. Canonical address Open the canonical source ↗ Accessed 2026-10-27 Language Simplified Chinese (zh-Hans) Attribution Doubao Team, “Doubao 1.5pro - Doubao Team”, 2025-01-22. 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, each CJK character counted as one), a part of a longer passage that the pack joined across separate fields of the page, 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. The pack had joined this field with others of the same page into one quotation; at admission each field became its own quotation (cross-family check, 2026-10-27). English machine translation, not verified by a person: “The model uses an MoE architecture and, through an integrated training–inference design,”. No human editorial review. primary source Supports the claim
Doubao 1.5pro - Doubao Team ↗ ByteDance Seed (字节跳动 Seed), seed.bytedance.com · 2025-01-22 · In Simplified Chinese (zh-Hans)
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Cite the original source Cite the original document, not Selekoa. Check these details against it.
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Source excerpt “Doubao 1.5pro - Doubao Team” Location in source Page title
How it was read Retrieved directly from the publisher
Machine-checked · 2026-10-27
Source details and check notes Authors Doubao Team Version Dated page, retrieved on 2026-10-27 (SHA-256 45912faf48b7d2a5de9e598e701bbac17f59996f947f105777de01d65550176f) directly from the publisher. Page dated 2025.01.22 on its face, read as it stood on 27 October 2026; earlier wording not authenticated. Its wording can change; earlier wording is not authenticated. English title (machine translation): “Doubao-1.5-pro”. Canonical address Open the canonical source ↗ Accessed 2026-10-27 Language Simplified Chinese (zh-Hans) Attribution Doubao Team, “Doubao 1.5pro - Doubao Team”, 2025-01-22. 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 (4 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. 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 printed on the page; the page is mutable and was read on 27 October 2026, so the date and wording as originally published are not authenticated.
Record ID c2-bytedance-seed-doubao-15-pro