Enter opens the highlighted result. Esc closes.

Terminal-Bench 4.0 leaderboard

Claude Opus 5.5 leads
64.8%
models measured
23
lead over #2
+3.0 pts
median
35.8%

Leader on Terminal-Bench 4.0 · read November 5

terminal_bench_4_0.py


        # Terminal-Bench 4.0, read November 5
        leaders = {
            "Claude Opus 5.5": 64.8%,    "Claude Sonnet 5.5": 61.8%,    "GPT-6 Astra": 58.2%,
        }
      

On November 5, 2026, 23 of our catalog's models had a Terminal-Bench 4.0 result, and Anthropic Claude Opus 5.5 led with 64.8%, ahead of Anthropic Claude Sonnet 5.5 at 61.8%.

Terminal-Bench 4.0 gives an AI agent tasks to finish in a real command-line terminal. The number is the accuracy the Terminal-Bench team publishes on its official 4.0 leaderboard: the share of tasks the agent completes. Each version of Terminal-Bench is a different task set, so 4.0 results are not comparable with the other versions.

How to read the score: Each entry on the board is a model run inside an agent harness (Claude Code, Codex, mini-SWE-agent and others), at one reasoning effort. We show the best result per model and name the agent and the effort. The best result can come from an agent the board lists from a third party, not the maker.

Role in the index

A coding board we show beside the Vibe Coding Index, not inside it: the index keeps the six boards it was defined on, so a score does not move every time a board is added. Read the methodology

Terminal-Bench 4.0 results for models in the catalog
# Model Result Evidence Coding index Output $/Mtok
1 Claude Opus 5.5Anthropic 64.8% 88.9 $20.00
2 Claude Sonnet 5.5Anthropic 61.8% 87.3 $10.00
3 GPT-6 AstraOpenAI 58.2% 85.1 $50.00
4 GPT-6.1 SolOpenAI 58.2% 82.3 $10.00
5 Claude Fable 5.1Anthropic 57.9% 84.3 $50.00
6 Claude Opus 5Anthropic 53.9% 81.6 $25.00
7 GPT-6 SolOpenAI 49.4% 72.3 $10.00
8 Claude Fable 5Anthropic 44.5% 75.9 $50.00
9 GLM 5.3Z.ai 41.8% 68.5 $4.40
10 Grok 4.7xAI 37.6% 66.7 $6.00
11 GPT-5.6 SolOpenAI 37.3% 70.7 $20.00
12 GLM 5.3 FlashZ.ai 35.8% 57.7 $0.50
13 Qwen3.8 Max (0902)Qwen 27.0% 67.1 $6.00
14 Claude Opus 4.8Anthropic 23.6% 62.8 $25.00
15 GPT-5.6 TerraOpenAI 21.5% 63.8 $12.00
16 Grok 4.6xAI 20.3% 65.7 $6.00
17 Gemini 3.8 FlashGoogle 19.1% 61.6 $3.75
18 GPT-5.6 LunaOpenAI 17.3% 55.3 $1.20
19 GPT-6 LunaOpenAI 16.4% 57.4 $0.50
20 Muse Spark 1.3Meta 14.5% 57.4 $4.25
21 Claude Sonnet 5Anthropic 12.4% 54.7 $10.00
22 Grok 4.5xAI 12.4% 52.3 $6.00
23 Gemini 3.7 FlashGoogle 11.2% 54.0 $3.75

Only models in our catalog are listed, and each appears once with its best published run. 62 rows were read from the source on November 5, 2026, and rows that match no catalog model are left out.

Results reported by model makers

The board above is Terminal-Bench (tbench.ai)'s own run. Model makers also report Terminal-Bench 4.0 in their release announcements; those numbers are below, with the date and the announcement. They are not independent and do not count toward any index.

Terminal-Bench 4.0 scores reported by model makers
Rank Model Score Setting Reported by Date
1 Claude Sonnet 5.5 70.6% Not published Anthropic June 30, 2026 (model release)
2 Claude Opus 5.5 66.4% Not published Anthropic May 27, 2026 (model release) · read from the maker's chart
3 Gemini 4 Argon 57.4% Not published Google October 13, 2026 (model release)
4 Claude Fable 5.1 55.8% Not published Anthropic May 27, 2026 (model release) · read from the maker's chart
5 Claude Opus 5 52.3% Not published Anthropic May 27, 2026 (model release) · read from the maker's chart
6 U Pareto 26.10 50.8% Not published Unbiased October 13, 2026 (model release)
7 DeepSeek V4.1 Flash 1017 42.3% Not published DeepSeek October 17, 2026 (model release)
8 Claude Fable 5 42.0% Not published Anthropic June 9, 2026 (model release)
9 Claude Haiku 5.5 39.2% Not published Anthropic October 7, 2026 (model release)
10 MiniMax M3.1 Flash 38.1% Not published MiniMax October 19, 2026 (model release)
11 Grok 4.7 37.6% xHigh xAI September 21, 2026
12 MiMo-V2.6-Pro 34.9% Not published Xiaomi September 21, 2026 (model release)
13 DeepSeek V4.1 Flash 31.2% Pass@1 DeepSeek September 10, 2026 (model release)
14 MiMo-V2.6-Flash 28.8% Not published Xiaomi September 21, 2026 (model release)
15 Grok 4.6 20.3% High xAI September 21, 2026
16 Claude Sonnet 5 10.3% Not published Anthropic June 30, 2026 (model release)
17 MiMo-V2.5-Pro 1.5% Not published Xiaomi September 21, 2026 (model release)
18 Claude Haiku 4.5 0.0% Not published Anthropic October 7, 2026 (model release)

Other reported runs

Terminal-Bench 4.0 scores reported by model makers, other reported runs
Model Score Setting Reported by Date
DeepSeek V4.1 Flash 31.2% Not published DeepSeek October 17, 2026 (model release)