AIEvals

Benchmarks

FrontierSWE

Whether an agent can finish ultra-long-horizon engineering and research work — thirty-four challenges, from decoding speech out of MEG brain recordings to training a weather model — where the usual failure is running out of time rather than writing the wrong code.

Agentic researchFrontierSWE community (open methodology)Vendor-reported onlyReported by Anthropic, Google DeepMind, Z.ai

How it is run

Version 2, published in September 2026, adds twenty-one tasks to the original thirteen and gives every run a twenty-hour budget: the agent is kept aware of the time left and pushed to keep going instead of submitting early. Grading runs through proxmius, the benchmark's own agent harness, with per-trial cheating-attempt audits published beside the results.

What it cannot tell you

Z.ai’s release table and the author-board snapshot use different settings. Google’s October 2026 table quotes Proximal’s official v2 leaderboard, but that later snapshot has not been independently imported here. Keep each publisher’s figures with its own source and date.

Why there is no independent table

No independent suite in this dataset runs FrontierSWE. The numbers below are the ones model publishers report about their own models, which is a different kind of evidence: each publisher chooses its own harness and effort level, so a row is readable on its own and not against the other rows.

Read this with

Nothing else on this site shares this benchmark's family or category, so these are other evaluations the same publisher reports.

As reported by each publisher

Kept separate per publisher, because the settings are not shared.

Anthropic

Claude Haiku 5.5: system card capability evaluations · 7 October 2026

RankModelScore
2Claude Haiku 5.543.8%
1Claude Fable 547.0%
3GPT-5.6 Sol32.2%

Ranks compare reported scores in the same published row; ties share a rank.

FrontierSWE v2. §8.6: Proximal runs all 34 tasks five times, 20-hour budget, its own harness, max effort.

Section 8, pages 111–139 of the Haiku 5.5 system card, read 8 October 2026. Values come from exact prose, tables and labelled figures. Unless specified, Haiku uses adaptive thinking at max effort and five trials with evaluation-specific context up to 1M. Each row retains its subset, metric, effort and source notes; no score is assigned to an unspecified SWE-Bench Pro version. Terminal runs use safeguards without fallback and no internet egress. ProgramBench uses filtered tasks and hidden-test pass rate without a time limit. OSWorld partial and strict results use the official 82-task offline subset. CAD uses 0–1 voxel IoU. Healthcare raw and length-adjusted scores stay separate. Life-science results disable Haiku biology safeguards. Independently run figures quoted by Anthropic remain publisher reports here. Missing comparison values are not inferred from rounded charts.

www.anthropic.com/claude-haiku-5-5-system-card

Google DeepMind

Gemini 4 Argon: model evaluation · October 2026

RankModelScore
4Gemini 4 Argon55.0%
1GPT-6 Astra65.5%
3Claude Fable 5.156.3%
2Claude Opus 5.562.3%

Ranks compare reported scores in the same published row; ties share a rank.

Page 5 of Google DeepMind’s model evaluation, read 1 October 2026. Gemini runs use the API at the highest thinking setting, generally pass@1 without majority voting or parallel test-time compute; smaller benchmarks average multiple trials. Other models use their highest available published reasoning results. Google quotes Vals AI for knowledge-work and Vibe Code results, Zapier’s private-set AutomationBench leaderboard, Proximal for FrontierSWE v2, Surge AI for RiemannBench and no-tools Chartography, and the CWE-bench v1 leaderboard. Argon’s DeepSWE uses mini-swe; Terminal-Bench 4.0 is self-computed for Argon and quoted from the author board for other models. PostTrainBench v1.1 uses OpenCode with one H100 and a 10-hour budget for all models. Terminal-Bench Science uses a 6x verifier timeout for Argon. LABBench 2 uses terminal, bioinformatics tools, Python, R and internet access for all models. GraphWalks uses BFS F1 on two separate subsets: 650 items up to 128k tokens and 200 items from 256k to 1M. Agent’s Last Exam uses ALE-Claw, a 5-hour window and binary pass rate, with safety filters enabled for Argon. OSWorld 2.0 uses offline partial reward, the best of three single-attempt runs for Argon, safety filters, 1080p, 500 steps, Gemini CUA with parallel batch tools and compaction, screenshot-only observation and the 08.08 patch; Claude’s combined online/offline results are omitted. LVBench runs without tools, using 1 FPS for Gemini, 800 frames for Astra, 300 for Fable and 600 for Opus. Missing cells remain blank. These are the report’s published figures, preserved separately from this site’s independent source snapshots.

storage.googleapis.com/deepmind-media/gemini/gemini_4_argon_model_evaluation.pdf

Z.ai

GLM-5.3: Frontier Coding with Emergent Cyber Capabilities — evaluation table · 14 August 2026

RankModelScore
2GLM 5.378.1%
3GLM 5.267.5%
4Claude Opus 4.866.5%
1Claude Fable 588.2%

Ranks compare reported scores in the same published row; ties share a rank.

FrontierSWE. The benchmark authors' own v2 leaderboard lists GLM-5.3 at 30.2% and Kimi K3 at 25.9%, and does not publish the other columns here.

The comparison table Z.ai publishes with GLM-5.3, read on the model card itself. Z.ai states that GLM-5.3 uses the same base model as GLM-5.2 and that every gain comes from post-training, so the GLM-5.2 column is the same architecture one training round earlier. Column names were restated in the form this site uses, and Z.ai labels its own Fable column "Fable 5 (w/ fallback)", which is recorded here as Claude Fable 5 and is the only column whose runs used a fallback model. Rows whose scale is not a percentage keep their own unit: ExploitGym is reported as tasks completed with a 2-hour and a 6-hour budget and is split into two rows so both numbers stay readable, and GDPval-AA v2 is a score rather than a percentage. The table is the only source for several benchmarks on this site, and nothing in it is an independent run.

z.ai/blog/glm-5.3

Sources

Every page used for this benchmark, read on 17 October 2026.