Benchmark Almanac

FullStackBench

MiniMax-M1-80k 68.3% leads since Jun 2025 Fading

Models write code for 3,374 problems in 16 programming languages across domains like data analysis and web development. Unit tests score each answer.

In the authors’ words

As the capabilities of code large language models (LLMs) continue to expand, their applications across diverse code intelligence domains are rapidly increasing. However, most existing datasets only evaluate limited application domains. To address this gap, we have developed a comprehensive code evaluation dataset FullStack Bench focusing on full-stack programming, which encompasses a wide range of application domains (e.g., basic programming, data analysis, software engineering, mathematics, and machine learning). Besides, to assess multilingual programming capabilities, in FullStack Bench, we design real-world instructions and corresponding unit test cases from 16 widely-used programming languages to reflect real-world usage scenarios rather than simple translations. Moreover, we also release an effective code sandbox execution tool (i.e., SandboxFusion) supporting various programming languages and packages to evaluate the performance of our FullStack Bench efficiently. Comprehensive experimental results on our FullStack Bench demonstrate the necessity and effectiveness of our FullStack Bench and SandboxFusion.

Abstract of FullStack Bench: Evaluating LLMs as Full Stack Coders (arXiv:2412.00535, CC0)
Made by ByteDance Seed Released Nov 2024 Function-level problems All tasks public Last in a launch post Feb 2026 , dropped before it saturated Last model added Feb 2026
Level
University Undergraduates and entry-level professionals
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Code A program or patch run against tests.
6
Models scored in lab cards
4
Launch posts list it, from 4 labs
5
System cards report it, from 5 labs

MiniMax-M1-80k leads with 68.3% among models released by Feb 2026

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.

The newest model with a score here came out in Feb 2026, and nobody has reported a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 MiniMax-M1-80k 68.3%
  2. 2 Hunyuan-A13B-Instruct 67.8%
  3. 3 ERNIE-4.5-300B-A47B 67.1%
  4. 4 Qwen3.5-122B-A10B 60.7%
  5. 5 qwen3-coder-next 60.6%
  6. 6 Seed-Coder-8B-Instruct 55.8%
#ModelScoreSettingDateSource
1 MiniMax-M1-80k 68.3% Jun 2025 Model card
2 Hunyuan-A13B-Instruct 67.8% Jun 2025 Model card
3 ERNIE-4.5-300B-A47B 67.1% Jun 2025 Model card
4 Qwen3.5-122B-A10B 60.7% Feb 2026 Model card
5 qwen3-coder-next 60.6% Feb 2026 Model card
6 Seed-Coder-8B-Instruct 55.8% Jun 2025 Model card

2 models have held number one since its release in Nov 2024

Lab claims count from the day the card came out, independent runs from the model’s release.

ByteDance Seed MiniMax
Lab claims Not tested since Feb 2026

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 Best so far
0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) MiniMax-M1-80k Seed-Coder-8B-Instruct 0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) MiniMax-M1-80k Seed-Coder-8B-Instruct

Labs headline it less often now, last in Feb 2026

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

MiniMax
Tencent
Baidu
Qwen
DateLaunch postScoreAs the post writes it
24 Feb 2026 Qwen3.5-122B-A10B 60.7 Mean of FullStackBench en 62.6 / FullStackBench zh 58.7
30 Jun 2025 ERNIE-4.5-300B-A47B 67.1 FullStackBench
27 Jun 2025 Hunyuan-A13B-Instruct 67.8 Fullstackbench
16 Jun 2025 MiniMax-M1-80k 68.3 FullStackBench

5 system cards report it, from 5 labs

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
28 Feb 2026 qwen3-coder-next technical report 60.6 FullStackBench-en, zh 57.38 (Table 7) Capabilities
29 Jun 2025 ERNIE-4.5-300B-A47B technical report 67.1 FullStackBench (Table 5) Capabilities
26 Jun 2025 Hunyuan-A13B-Instruct technical report 67.8 FullstackBench, slow-thinking (Table 3). Fast-thinking 58.3 (Table 4) Capabilities
16 Jun 2025 MiniMax-M1-80k technical report 68.3 FullStackBench, avg of 16 samples (Table 2) Capabilities
4 Jun 2025 Seed-Coder-8B-Instruct technical report 55.8 FullStack Bench Overall pass@1 (Tables 10 and 11) Capabilities

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