Who ranks #1 on the Terminal-Bench leaderboard?
As of August 20, 2026, GPT-5.5 by OpenAI ranks #1 on Terminal-Bench 2.0 at 82.7%. API pricing is $5.00/M input and $30.00/M output.
As of August 20, 2026, GPT-5.5 is #1 for Terminal-Bench at 82.7%. Ranked by the Terminal-Bench 2.0 score Terminal-Bench leaderboard for 2.0 and 2.1 agent scores, plus API pricing. Rank the best terminal and DevOps LLMs.
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282 models across 33 providers. Search or jump to a lab — every model page stays linked here.







As of August 20, 2026, GPT-5.5 by OpenAI is #1 for Terminal-Bench at 82.7%. Ranked by the Terminal-Bench 2.0 score This board also tracks Terminal-Bench 2.0, Terminal-Bench, Terminal-Bench 2.1, Terminal-Bench 2. Next on the same board: Claude Mythos Preview and Claude Sonnet 5. Related leaders: Kimi K3 on Terminal-Bench at 88.3%; GPT-5.6 Sol on Terminal-Bench 2.1 at 88.8%. This terminal-bench leaderboard ranks models by Terminal-Bench 2.0. Scores come from public evals. Prices are the live API rates in the table above.
Sources: Terminal-Bench (https://www.tbench.ai/); OpenAI API pricing (https://developers.openai.com/api/docs/pricing); Anthropic Claude API pricing (https://platform.claude.com/docs/en/about-claude/pricing); Gemini API pricing (https://ai.google.dev/gemini-api/docs/pricing)
| Rank | Model | Terminal-Bench 2.0 | Input /M | Output /M |
|---|---|---|---|---|
| 1 | GPT-5.5 | 82.7% | $5.00 | $30.00 |
| 2 | Claude Mythos Preview | 82% | $10.00 | $50.00 |
| 3 | Claude Sonnet 5 | 80.4% | $2.00 | $10.00 |
| 4 | Qwen3.7-Plus | 70.3% | $0.32 | $1.28 |
| 5 | Claude Opus 4.8 | 70.0% | $5.00 | $25.00 |
| 6 | Claude Opus 4.7 | 68.5% | $5.00 | $25.00 |
| 7 | MiMo-V2.5-Pro | 68.4% | $0.43 | $0.87 |
| 8 | DeepSeek-V4-Pro-Max | 67.9% | $1.74 | $3.48 |
Rank one eval at a time. All LLM benchmarks.
As of August 20, 2026, GPT-5.5 by OpenAI ranks #1 on Terminal-Bench 2.0 at 82.7%. API pricing is $5.00/M input and $30.00/M output.
The current Terminal-Bench 2.0 ranking as of August 20, 2026 is 1. GPT-5.5 at 82.7%; 2. Claude Mythos Preview at 82%; 3. Claude Sonnet 5 at 80.4%.
DeepSeek-V4-Flash-0423 is the cheapest scored model on this terminal-bench leaderboard at $0.10/M input and $0.20/M output ($0.30 blended). GPT-5.5 still leads Terminal-Bench 2.0 at 82.7%.
Not automatically. GPT-5.5 leads Terminal-Bench 2.0, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Terminal-Bench 2.0 against input/output price, context window, and related evals.
Scores and API prices on this page are refreshed from published evals and provider rates. The snapshot is labeled August 20, 2026. Treat it as a current index, not a one-off blog post.
Terminal-Bench measures whether an agent can finish realistic shell, sysadmin, and DevOps tasks in a terminal instead of writing a single function.
Use 2.1 when the model has a score. It is the harder current set. We still show 2.0 and the original Terminal-Bench when that is all a lab published.
No. SWE-bench is repository issue fixing. Terminal-Bench is command-line operations. Strong coding models can still fail basic shell workflows.