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ByteDance

Seed 1.8: benchmarks, price and rank

Seed 1.8 from ByteDance is 95th of 123 rated AI models on Spezia's leaderboard. It costs $0.25 in, $2 out per million tokens.

  • 95th of 123 rated models
  • Rating 858
  • Rated on 6 benchmarks
  • Closed
  • Released Feb 17, 2026
  • 256,000 tokens of context
Compare Seed 1.8 with any model Free account. No card.

Where it is strongest

Not in the top tenth on any benchmark in use.

Where it falls behind

  • 38th of 45 on CharXiv Reasoning
  • 15th of 21 on ERQA
  • 36th of 51 on MMMU-Pro

Price: $0.25 in, $2 out per million tokens.

Its headline results

The benchmarks that count most in the rating, with its place among the models measured the same way, and where each number came from.

  • BrowseComp67.6%

    Questions whose answers are hidden deep on the web and take many searches and pages to track down.

    32nd of 56. The maker's own number, from ByteDance, via LLM Stats.

  • LiveCodeBench v679.5%

    Programming contest problems collected after models were trained, from LeetCode, AtCoder and Codeforces.

    22nd of 43. The maker's own number, from ByteDance, via LLM Stats.

  • MMMU-Pro73.2%

    College exam questions that need a picture to answer, such as charts, diagrams, maps and chemical structures, with more answer options than the original MMMU and some questions shown only as a screenshot.

    36th of 51. The maker's own number, from ByteDance, via LLM Stats.

  • CharXiv Reasoning71.4%

    Questions about real charts from scientific papers that need reasoning across the chart, not just reading off a value.

    38th of 45. The maker's own number, from ByteDance, via LLM Stats.

  • ERQA58.8%

    400 questions about images of the physical world: space, motion, actions, the state of objects and views from several cameras.

    15th of 21. The maker's own number, from ByteDance, via LLM Stats.

  • SWE-bench Verified72.9%

    Real bug reports and feature requests from popular open-source Python projects. The model has to change the code so the project's hidden tests pass.

    25th of 56. The maker's own number, from ByteDance, via LLM Stats.

  • MMLU-Pro84.9%

    Twelve thousand multiple-choice questions across fourteen subjects, from law and medicine to engineering, with ten options each.

    22nd of 56. The maker's own number, from ByteDance, via LLM Stats.

2 more results in its full profile.

Every result with its source, what it costs per task, what jumped with its release, side by side with any other model, and answers to your questions about when to use it.

Models ranked near it

How the rating works, and every benchmark it uses: the model leaderboard.