Benchmark Almanac

Terminal-Bench

GPT-5 49.6% leads since August 2025
Claude Opus 4 50% leads since May 2025
Fading

Agents complete about 80 hard tasks in sandboxed Linux terminals, such as compiling code or configuring servers. Test scripts check the final container state.

Terminal-Bench 2.0 replaced this first release in November 2025 with 89 harder tasks, and later versions followed.

Released
May 2025
Kind
Terminal tasks
Level
Expert
Scored
Checked automatically
Answers
Agent task
Tasks
All public
Strongest model tested
GPT-5 #70 on the capability index
Last in a launch post
December 2025, dropped for a newer version
Last model added
December 2025
Scores refreshed
November 12th, 2026

In the authors’ words

AI agents may soon become capable of autonomously completing valuable, long-horizon tasks in diverse domains. Current benchmarks either do not measure real-world tasks, or are not sufficiently difficult to meaningfully measure frontier models. To this end, we present Terminal-Bench 2.0: a carefully curated hard benchmark composed of 89 tasks in computer terminal environments inspired by problems from real workflows. Each task features a unique environment, human-written solution, and comprehensive tests for verification. We show that frontier models and agents score less than 65% on the benchmark and conduct an error analysis to identify areas for model and agent improvement. We publish the dataset and evaluation harness to assist developers and researchers in future work at https://www.tbench.ai/ .

Abstract of Terminal-Bench: Benchmarking Agents on Hard, Realistic Tasks in Command Line Interfaces (arXiv:2601.11868, CC0)
18
Models scored on a board Epoch AI copied
20
Launch posts list it, from 10 labs
8
System cards report it, from 6 labs

GPT-5 leads with 49.6% among models released by October 2025

Best score per model from tbench.ai, as Epoch AI copied it. We don’t read that board ourselves yet. Where a model ran with several settings, we keep its best.

Claude Opus 4 leads with 50%, claims included

Best score per model from every source, including labs’ own numbers and claims Epoch AI collected from reports and papers. Labs pick their own settings, so a claim can beat an independent run of the same model.

The newest model with a score here came out in October 2025, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 GPT-5 unknown thinking 49.6%
  2. 2 Claude Sonnet 4.5 unknown thinking 46.5%
  3. 3 GPT-5-Codex 44.3%
  4. 4 Claude Opus 4.1 38%
  5. 5 Claude Haiku 4.5 unknown thinking 35.5%
  6. 6 GPT-5 mini unknown thinking 34.8%
  7. 7 Gemini 2.5 Pro Jun 2025 32.6%
  8. 8 MiniMax-M2 30%
  9. 9 Kimi K2 Jul 2025 27.8%
  10. 10 Grok 4 27.2%
  11. 11 Qwen3-Coder-480B-A35B 27.2%
  12. 12 grok-code-fast-1 25.8%
  13. 13 GLM-4.6 24.5%
  14. 14 GPT-5 nano unknown thinking 21.8%
  15. 15 gpt-oss-120b unknown thinking 18.7%
  16. 16 Gemini 2.5 Flash Jun 2025 17.1%
  17. 17 Gemini 2.5 Flash Sep 2025 16.9%
  18. 18 gpt-oss-20b 3.37%

Source: Tbench.ai, via Epoch AI (CC BY 4.0)

Sources: Labs’ model cards and tbench.ai, via Epoch AI (CC BY 4.0)

#ModelScoreSettingDateSource
1 GPT-5 49.6% unknown thinking, Codex CLI Aug 2025 tbench.ai, via Epoch AI
2 Claude Sonnet 4.5 46.5% unknown thinking, CAMEL-AI Sep 2025 tbench.ai, via Epoch AI
3 GPT-5-Codex 44.3% Codex CLI Sep 2025 tbench.ai, via Epoch AI
4 Claude Opus 4.1 38% Terminus 2 Aug 2025 Terminal-Bench v2 Leaderboard, via Epoch AI
5 Claude Haiku 4.5 35.5% unknown thinking, Goose Oct 2025 tbench.ai, via Epoch AI
6 GPT-5 mini 34.8% unknown thinking, spoox-o-m Aug 2025 tbench.ai, via Epoch AI
7 Gemini 2.5 Pro Jun 2025 32.6% Terminus 2 Jun 2025 tbench.ai, via Epoch AI
8 MiniMax-M2 30% Terminus 2 Oct 2025 tbench.ai, via Epoch AI
9 Kimi K2 Jul 2025 27.8% Terminus 2 Jul 2025 tbench.ai, via Epoch AI
10 Grok 4 27.2% OpenHands Jul 2025 tbench.ai, via Epoch AI
11 Qwen3-Coder-480B-A35B 27.2% Dakou Agent Jul 2025 tbench.ai, via Epoch AI
12 grok-code-fast-1 25.8% Mini-SWE-Agent Aug 2025 tbench.ai, via Epoch AI
13 GLM-4.6 24.5% Terminus 2 Sep 2025 tbench.ai, via Epoch AI
14 GPT-5 nano 21.8% unknown thinking, spoox-o-m Aug 2025 tbench.ai, via Epoch AI
15 gpt-oss-120b 18.7% unknown thinking, Terminus 2 Aug 2025 tbench.ai, via Epoch AI
16 Gemini 2.5 Flash Jun 2025 17.1% Mini-SWE-Agent Jun 2025 tbench.ai, via Epoch AI
17 Gemini 2.5 Flash Sep 2025 16.9% Terminus 2 Sep 2025 Terminal-Bench v2 Leaderboard, via Epoch AI
18 gpt-oss-20b 3.37% Mini-SWE-Agent Aug 2025 tbench.ai, via Epoch AI
#ModelScoreSettingDateSource
1 Claude Opus 4 50% May 2025 Lab model card
2 Claude Sonnet 4.5 50% Sep 2025 Lab model card
3 GPT-5 49.6% unknown thinking, Codex CLI Aug 2025 tbench.ai, via Epoch AI
4 Kimi K2 Thinking 47.1% Nov 2025 Lab model card
5 MiniMax-M2 46.3% Oct 2025 Lab model card
6 UI-TARS-2 45.3% Sep 2025 Lab model card
7 Kimi K2 Sep 2025 44.5% Sep 2025 Lab model card
8 GPT-5-Codex 44.3% Codex CLI Sep 2025 tbench.ai, via Epoch AI
9 Claude Opus 4.1 43.3% Aug 2025 Lab model card
10 Claude Sonnet 4 41.3% May 2025 Lab model card
11 Nova 2.0 Pro Preview 41.3% Dec 2025 Lab model card
12 Claude Haiku 4.5 41% Oct 2025 Lab model card
13 GLM-4.6 40.5% Sep 2025 Lab model card
14 LongCat-Flash-Chat 39.5% Aug 2025 Lab model card
15 DeepSeek-V3.2-Exp 37.7% Sep 2025 Lab model card
16 Qwen3-Coder-480B-A35B 37.5% Jul 2025 Lab model card
17 GLM-4.5 37.5% Jul 2025 Lab model card
18 DeepSeek-V3.1-Terminus 36.7% Sep 2025 Lab model card
19 GPT-5 mini 34.8% unknown thinking, spoox-o-m Aug 2025 tbench.ai, via Epoch AI
20 Tencent HY 2.0 Think 34.6% Dec 2025 Lab model card
21 Gemini 2.5 Pro Jun 2025 32.6% Terminus 2 Jun 2025 tbench.ai, via Epoch AI
22 Nova 2 Lite 32.5% Dec 2025 Lab model card
23 DeepSeek-V3.1 31.3% Aug 2025 Lab model card
24 Kimi K2 Jul 2025 30% Jul 2025 Lab model card
25 GLM-4.5-Air 30% Aug 2025 Lab model card
26 Grok 4 27.2% OpenHands Jul 2025 tbench.ai, via Epoch AI
27 Code World Model (CWM) 26.3% Sep 2025 Lab model card
28 grok-code-fast-1 25.8% Mini-SWE-Agent Aug 2025 tbench.ai, via Epoch AI
29 GPT-5 nano 21.8% unknown thinking, spoox-o-m Aug 2025 tbench.ai, via Epoch AI
30 gpt-oss-120b 18.7% unknown thinking, Terminus 2 Aug 2025 tbench.ai, via Epoch AI
31 Gemini 2.5 Flash Jun 2025 17.1% Mini-SWE-Agent Jun 2025 tbench.ai, via Epoch AI
32 Gemini 2.5 Flash Sep 2025 16.9% Terminus 2 Sep 2025 Terminal-Bench v2 Leaderboard, via Epoch AI
33 gpt-oss-20b 3.37% Mini-SWE-Agent Aug 2025 tbench.ai, via Epoch AI

Labs report scores for 22 models in their cards. Switch the scores above to rank them together.

3 models have held number one on tbench.ai since its release in May 2025 Number one over time

Lab claims count from the day the card came out, independent runs from the model’s release. We draw one row each for tbench.ai, which Epoch AI copied and what labs claim in their cards.

Google DeepMind Anthropic OpenAI
tbench.ai, via Epoch AI Replaced by 2.0, Nov 2025
GPT-5 49.6%
Lab claims Replaced by 2.0, Dec 2025

Sources: Tbench.ai, via Epoch AI (CC BY 4.0) and labs’ model cards

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 On another leaderboard, collected by Epoch AI
0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) Claude Opus 4 0% 20% 40% 60% 80% 100% 2025 2026 Near the ceiling (85%) Claude Opus 4

Sources: Other boards, via Epoch AI (CC BY 4.0) and labs’ model cards

Labs headline it less often now, last in December 2025

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.

Anthropic
Moonshot AI
Qwen
Z.ai
DeepSeek
Meituan
ByteDance Seed
MiniMax
Amazon
Tencent
DateLaunch postScoreAs the post writes it
Dec 5, 2025 Tencent HY 2.0 Think 34.6 Terminal Bench
Dec 2, 2025 Nova 2 Lite 32.5 Terminal-Bench 1.0 accuracy
Dec 2, 2025 Nova 2.0 Pro Preview 41.3 Terminal-Bench 1.0 accuracy
Nov 6, 2025 Kimi K2 Thinking 47.1 Terminal-Bench, w/ simulated tools (JSON)
Oct 27, 2025 MiniMax-M2 46.3 Terminal-Bench
Oct 15, 2025 Claude Haiku 4.5 41 Agentic terminal coding Terminal-Bench
Sep 30, 2025 GLM-4.6 40.5 Terminal-Bench
Sep 29, 2025 DeepSeek-V3.2-Exp 37.7 Terminal-bench
Sep 29, 2025 Claude Sonnet 4.5 50 Agentic terminal coding Terminal-Bench (Terminus 2)
Sep 22, 2025 DeepSeek-V3.1-Terminus 36.7 Terminal-bench
Sep 5, 2025 Kimi K2 44.5 Terminal-Bench, ACC
Sep 2, 2025 UI-TARS-2 45.3 TB (Terminal Bench) with GUI-SDK, 75 of 80 tasks
Aug 29, 2025 LongCat-Flash-Chat 39.5 TerminalBench(acc)
Aug 21, 2025 DeepSeek-V3.1 31.3 Terminal-bench (Terminus 1 framework)
Aug 5, 2025 Claude Opus 4.1 43.3 Agentic terminal coding Terminal-Bench (Terminus 1)
Jul 28, 2025 GLM-4.5 37.5 SWE-Terminal-Bench (Terminal Bench)
Jul 22, 2025 Qwen3-Coder-480B-A35B 37.5 Terminal-Bench
Jul 11, 2025 Kimi K2 30 TerminalBench, Inhouse Framework (Acc)
May 22, 2025 Claude Sonnet 4 41.3 Agentic terminal coding Terminal-bench (parallel test-time compute)
May 22, 2025 Claude Opus 4 50 Agentic terminal coding Terminal-bench (parallel test-time compute)

8 system cards report it, from 6 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
Dec 2, 2025 Nova 2 Lite technical report 32.5 Terminal-Bench 1.0 accuracy, 80 tasks (Table 4) Capabilities
Dec 2, 2025 Nova 2.0 Pro Preview technical report 41.3 Terminal-Bench 1.0 accuracy, 80 tasks (Table 4) Capabilities
Sep 30, 2025 Code World Model (CWM) technical report 26.3 Terminal-Bench, Terminus 1 agent, 50 turns, 26.25 in text (Table 7) Capabilities
Sep 29, 2025 DeepSeek-V3.2-Exp technical report 37.7 Terminal-bench (Terminus 1 framework), DeepSeek-V3.2-Exp (Table 1) Capabilities
Sep 1, 2025 LongCat-Flash-Chat technical report 39.5 TerminalBench (acc), Terminus framework (Table 3) Capabilities
Aug 8, 2025 GLM-4.5 technical report 37.5 Terminal-Bench, Terminus framework (Table 5) Capabilities
Aug 8, 2025 GLM-4.5-Air technical report 30 Terminal-Bench, Terminus framework (Table 5) Capabilities
Jul 21, 2025 Kimi K2 technical report 30 Terminal Bench In-House framework (Acc.). Terminus framework 25.0 (Table 3) Capabilities

Versions

We switch the top row to each new version when it comes out. Open it for one row per version. An old version stays in play while people still test it, so whoever first takes it past 85% gets credit for closing it out.

Google DeepMind Anthropic OpenAI
Terminal-Bench 4.1 20 leaders
Terminal-Bench Replaced by 2.0, Nov 2025
GPT-5 49.6%
Terminal-Bench 2.0 Replaced by 2.1, May 2026
GPT-5.5 84.7%
Terminal-Bench 2.1 Passed 85% in Sep 2026, by GPT-6 Astra
GPT-6 Astra 87.4%
Terminal-Bench 3.0 Replaced by 4.0, Aug 2026

Sources: Official leaderboards and boards copied by Epoch AI (CC BY 4.0)

More in Terminal agents

All 19 in Terminal agents
  • SkillsBench In use 86-87 containerized expert tasks in 11 domains, run with and without Agent Skills. Verifier tests give pass rate and skill lift. GPT-5.5 67.3%
  • Terminal-Bench Hard In use Agents complete 44 hard tasks from Terminal-Bench Core in the Terminus 2 harness. Artificial Analysis scores pass@1 averaged over 3 repeats. Gemma 4 31B IT 36%
  • Harbor-Index In use Agents solve about 80 hard tasks drawn from 29 benchmarks run through Harbor adapters, such as HLE, GSO and SWE-bench Pro. Each task keeps its source verifier. GPT-5.5 28.1%
  • Terminal-Bench 2.1 Extended Not in model cards Agents complete long command-line tasks in containers, scored by verification tests. Mercor adds 99 new expert-written tasks to the 89 public ones and reports both scores. Muse Wonder 54%
  • o11y-bench Not in model cards Agents query metrics, logs and traces in a live Grafana stack, investigate incidents and fix dashboards. Grading checks claims against facts read from the same environment. Claude Opus 5.5 93.8%
  • CompileBench Not in model cards Agents build real open-source projects through dependency problems, legacy toolchains and complex build systems, for example compiling 22-year-old code. Claude Opus 4.1 100%