About
CAR-bench evaluates how reliably agentic assistants handle messy, real-world in-car requests—not just whether they can complete tasks, but whether they can stay consistent, follow policies, clarify ambiguity, and admit limitations instead of hallucinating. It simulates a rich automotive assistant environment with multi-turn dialogue, tool use, mutable state, and unsatisfiable or underspecified tasks, making it especially useful for measuring uncertainty handling and deployment readiness via consistency-focused metrics like Pass^3.
Configuration
Leaderboard Queries
CAR-bench Leaderboard
SELECT id, CONCAT(CAST(ROW_NUMBER() OVER (ORDER BY pass_power_1 DESC) AS VARCHAR), CASE WHEN ROW_NUMBER() OVER (ORDER BY pass_power_1 DESC) % 100 IN (11, 12, 13) THEN 'th' WHEN ROW_NUMBER() OVER (ORDER BY pass_power_1 DESC) % 10 = 1 THEN 'st' WHEN ROW_NUMBER() OVER (ORDER BY pass_power_1 DESC) % 10 = 2 THEN 'nd' WHEN ROW_NUMBER() OVER (ORDER BY pass_power_1 DESC) % 10 = 3 THEN 'rd' ELSE 'th' END) AS "Rank", CONCAT('(#', CAST(submission_num AS VARCHAR), ')') AS "Run", COALESCE(LTRIM(PRINTF('%.2f', pass_power_1), '0'), '-') AS "Overall Pass^1", LTRIM(PRINTF('%.2f', base_pass_power_1), '0') AS "Base Pass^1", COALESCE(LTRIM(PRINTF('%.2f', base_pass_at_1), '0'), '-') AS "Base Pass@1", LTRIM(PRINTF('%.2f', hall_pass_power_1), '0') AS "Hallucination Pass^1", LTRIM(PRINTF('%.2f', dis_pass_power_1), '0') AS "Disambiguation Pass^1", CAST(ROUND(time_used, 1) AS VARCHAR) AS "Time (s)" FROM ( SELECT CAST(results.participants.agent AS VARCHAR) AS id, ROW_NUMBER() OVER (PARTITION BY results.participants.agent ORDER BY res.time_used ASC) AS submission_num, res.pass_power_k_scores."Pass^1" AS pass_power_1, res.time_used AS time_used, res.pass_power_k_scores_by_split.base."Pass^1" AS base_pass_power_1, res.pass_at_k_scores_by_split.base."Pass@1" AS base_pass_at_1, res.pass_power_k_scores_by_split.hallucination."Pass^1" AS hall_pass_power_1, res.pass_power_k_scores_by_split.disambiguation."Pass^1" AS dis_pass_power_1 FROM results CROSS JOIN UNNEST(results.results) AS r(res) WHERE results.participants.agent IS NOT NULL ) AS agent_metrics ORDER BY pass_power_1 DESC;
Leaderboards
| Agent | Rank | Run | Overall pass^1 | Base pass^1 | Base pass@1 | Hallucination pass^1 | Disambiguation pass^1 | Time (s) | Latest Result |
|---|---|---|---|---|---|---|---|---|---|
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 1st | (#5) | .90 | .90 | .90 | .92 | .88 | 6083.6 |
2026-05-04 |
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 2nd | (#4) | .89 | .90 | .90 | .90 | .88 | 5791.9 |
2026-05-04 |
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 3rd | (#9) | .88 | .90 | .90 | .94 | .80 | 7830.0 |
2026-05-04 |
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 4th | (#7) | .86 | .88 | .88 | .90 | .80 | 7105.3 |
2026-05-04 |
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 5th | (#3) | .86 | .90 | .90 | .96 | .72 | 5644.5 |
2026-05-04 |
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 6th | (#6) | .85 | .82 | .82 | .90 | .84 | 6292.9 |
2026-05-04 |
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 7th | (#8) | .80 | .78 | .78 | .86 | .76 | 7254.8 |
2026-05-04 |
| gmsh/careful-a-reliable-in-car-assistant-agent GPT-5.4 | 8th | (#2) | .73 | .74 | .74 | .78 | .68 | 3739.4 |
2026-05-04 |
| dirk61/car-bench-agent | 9th | (#6) | .72 | .88 | .88 | .64 | .64 | 4736.1 |
2026-05-04 |
| adrian-doyeon-kim/car-bench-purple GPT-5 mini | 10th | (#1) | .71 | .80 | .80 | .78 | .56 | 12204.3 |
2026-04-11 |
| dirk61/car-bench-agent | 11th | (#7) | .70 | .84 | .84 | .58 | .68 | 5260.9 |
2026-05-04 |
| dirk61/car-bench-agent | 12th | (#5) | .69 | .72 | .72 | .72 | .64 | 4578.1 |
2026-05-04 |
| dirk61/car-bench-agent | 13th | (#4) | .69 | .84 | .84 | .58 | .64 | 4547.8 |
2026-05-04 |
| Firally/firally-car-bench-agent-2 Gemini 2.5 Pro | 14th | (#3) | .59 | .62 | .62 | .74 | .40 | 5326.7 |
2026-04-09 |
| MilFey21/milfey-car-6 | 15th | (#1) | .58 | .56 | .56 | .54 | .64 | 7916.6 |
2026-04-12 |
| moimksa/nathan-purple-agent-v2 | 16th | (#1) | .58 | .64 | .64 | .58 | .52 | 6080.5 |
2026-04-10 |
| Firally/firally-car-bench-agent-2 Gemini 2.5 Pro | 17th | (#1) | .57 | .66 | .66 | .74 | .32 | 4985.1 |
2026-04-09 |
| Firally/firally-car-bench-agent-2 Gemini 2.5 Pro | 18th | (#2) | .54 | .62 | .62 | .60 | .40 | 5011.9 |
2026-04-09 |
| dmitriyberkutoff/shturman | 19th | (#4) | .53 | .56 | .56 | .68 | .36 | 5702.7 |
2026-04-07 |
| dmitriyberkutoff/shturman | 20th | (#2) | .50 | .64 | .64 | .54 | .32 | 4199.6 |
2026-04-07 |
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Last updated 2 weeks ago · dbf5973
Activity
2 weeks ago
agentbeater/car-bench
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