Benchmark Almanac

Seed1.5-VL internal benchmark (ByteDance Seed in-house)

Only in system cards

Models answer more than 12,000 internal image questions over 100 tasks, from perception, OCR and STEM to agents, code and out-of-distribution puzzles. LLM judges grade answers, and the overall is a weighted average.

In-house ByteDance Seed evaluation. The tasks are not public. Many tasks are in Chinese, and the task set is refreshed over time.

Made by
ByteDance Seed
Released
May 2025
Kind
General visual questions
Level
University
Scored
Graded by a model
Answers
Short answer
Tasks
Kept private
Last in a system card
May 2025
Last model added
May 2025
1
Model scored in lab cards
1
System card reports it, from 1 lab

Seed1.5-VL leads with 59.3%

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

  1. 1 Seed1.5-VL 59.3%

Source: Labs’ model cards

#ModelScoreSettingDateSource
1 Seed1.5-VL 59.3% May 2025 Lab model card

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

Reported by the lab in its model card
0% 20% 40% 60% 80% 100% 2025 Near the ceiling (85%) Seed1.5-VL 0% 20% 40% 60% 80% 100% 2025 Near the ceiling (85%) Seed1.5-VL

Source: Labs’ model cards

Labs report it only in system cards

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark. Some system cards do, below.

One system card reports it

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
May 11, 2025 Seed1.5-VL technical report 59.3 Internal benchmark Overall, weighted average, thinking (Table 10). OOD 44.1, Agent 63.1, Reasoning 47.6 Capabilities

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