Benchmark AI_TRUECOST_

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gpt-6-sol

Running gpt-6-sol inside codex.

FastAPI: Add POST /api/v1/projects/{project_id}/tasks endpoint Plan → Review plan → Execute → Review & fix → Open PR → Verify PR → Verify e2e

All steps run as one workflow, inside a single Docker container.

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5 of the 10 steps are agent sessions, each started fresh: only the repository working tree and the previous step's output carry over. Host steps orchestrate and verify, and cost nothing.
# Step Kind What happens
1 pullIssue host Fetches the GitHub issue and creates a branch
2 plan agent Drafts a plan from the ticket, including tests
3 reviewPlan agent Always runs; returns the full final plan
4 execute agent Implements the landing page; may run repeated preview captures; no harness step timeout
5 reviewAndCorrect agent Visual review against the brief and reference render; fixes layout and copy; no harness step timeout
6 openPullRequest agent Commits, pushes, opens a pull request into main
7 verifyPullRequest host Checks that the exact pull request is open
8 verifyPullRequestCheck host Waits for the required end-to-end check to pass
9 summarizeUsage host Totals tokens and cost
10 score host Records the final result
Speed
Reasoning
Run 5 2026-10-08 · standard · high $0.71 PASS

Steps

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Agent steps start a fresh session. Host steps are included in the run cost.
Step Status Cost Time In tok Out tok Tools
pullIssue succeeded $0.00 — 0 0 0
plan succeeded $0.06 0m 28s 204 2,185 2
reviewPlan succeeded $0.06 0m 31s 204 2,670 2
execute succeeded $0.26 1m 48s 1,088 11,094 12
reviewAndCorrect succeeded $0.17 1m 08s 952 4,290 10
openPullRequest succeeded $0.15 0m 57s 952 3,969 13
verifyPullRequest succeeded $0.00 0m 01s 0 0 0
verifyPullRequestCheck succeeded $0.00 0m 11s 0 0 0
summarizeUsage succeeded $0.00 — 0 0 0
score succeeded $0.00 — 0 0 0

Run totals

Cost
$0.71
Agent time
4m 51s
Input tokens
3,400
Output tokens
24,208
Cache-read tokens
908,738
Tool calls
39

Tool call mix

command_execution
36
file_change
3
Run 4 2026-10-07 · standard · high $0.71 PASS

Steps

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Agent steps start a fresh session. Host steps are included in the run cost.
Step Status Cost Time In tok Out tok Tools
pullIssue succeeded $0.00 — 0 0 0
plan succeeded $0.06 0m 28s 201 2,167 2
reviewPlan succeeded $0.06 0m 32s 199 2,646 2
execute succeeded $0.26 1m 49s 1,091 11,022 12
reviewAndCorrect succeeded $0.18 1m 06s 972 4,343 10
openPullRequest succeeded $0.15 0m 56s 953 4,029 13
verifyPullRequest succeeded $0.00 0m 01s 0 0 0
verifyPullRequestCheck succeeded $0.00 0m 11s 0 0 0
summarizeUsage succeeded $0.00 — 0 0 0
score succeeded $0.00 — 0 0 0

Run totals

Cost
$0.71
Agent time
4m 52s
Input tokens
3,416
Output tokens
24,207
Cache-read tokens
914,079
Tool calls
39

Tool call mix

command_execution
35
file_change
4
Run 3 2026-10-07 · standard · high $0.72 PASS

Steps

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Agent steps start a fresh session. Host steps are included in the run cost.
Step Status Cost Time In tok Out tok Tools
pullIssue succeeded $0.00 — 0 0 0
plan succeeded $0.06 0m 28s 205 2,175 2
reviewPlan succeeded $0.07 0m 32s 202 2,686 2
execute succeeded $0.27 1m 50s 1,112 11,251 12
reviewAndCorrect succeeded $0.18 1m 08s 946 4,302 10
openPullRequest succeeded $0.15 0m 56s 957 3,914 13
verifyPullRequest succeeded $0.00 0m 01s 0 0 0
verifyPullRequestCheck succeeded $0.00 0m 11s 0 0 0
summarizeUsage succeeded $0.00 — 0 0 0
score succeeded $0.00 — 0 0 0

Run totals

Cost
$0.72
Agent time
4m 54s
Input tokens
3,422
Output tokens
24,328
Cache-read tokens
920,455
Tool calls
39

Tool call mix

command_execution
34
file_change
5
Run 2 2026-10-07 · standard · high $0.71 PASS

Steps

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Agent steps start a fresh session. Host steps are included in the run cost.
Step Status Cost Time In tok Out tok Tools
pullIssue succeeded $0.00 — 0 0 0
plan succeeded $0.06 0m 27s 203 2,204 2
reviewPlan succeeded $0.06 0m 31s 208 2,641 2
execute succeeded $0.26 1m 48s 1,092 11,108 12
reviewAndCorrect succeeded $0.17 1m 08s 968 4,260 10
openPullRequest succeeded $0.15 0m 57s 943 4,048 13
verifyPullRequest succeeded $0.00 0m 01s 0 0 0
verifyPullRequestCheck succeeded $0.00 0m 11s 0 0 0
summarizeUsage succeeded $0.00 — 0 0 0
score succeeded $0.00 — 0 0 0

Run totals

Cost
$0.71
Agent time
4m 51s
Input tokens
3,414
Output tokens
24,261
Cache-read tokens
890,645
Tool calls
39

Tool call mix

command_execution
37
file_change
2
Run 1 2026-10-07 · standard · high $0.71 PASS

Steps

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Agent steps start a fresh session. Host steps are included in the run cost.
Step Status Cost Time In tok Out tok Tools
pullIssue succeeded $0.00 — 0 0 0
plan succeeded $0.06 0m 27s 199 2,217 2
reviewPlan succeeded $0.06 0m 31s 201 2,645 2
execute succeeded $0.26 1m 49s 1,101 11,186 12
reviewAndCorrect succeeded $0.17 1m 07s 948 4,194 10
openPullRequest succeeded $0.15 0m 58s 974 4,042 13
verifyPullRequest succeeded $0.00 0m 01s 0 0 0
verifyPullRequestCheck succeeded $0.00 0m 10s 0 0 0
summarizeUsage succeeded $0.00 — 0 0 0
score succeeded $0.00 — 0 0 0

Run totals

Cost
$0.71
Agent time
4m 53s
Input tokens
3,423
Output tokens
24,284
Cache-read tokens
907,952
Tool calls
39

Tool call mix

command_execution
36
file_change
3