Cheapest LLM that passes each task: cost per successful task and pass rate on public datasets.
Connect Remote server
claude mcp add --transport http clearbar https://clearbar.grain64.com/mcp
{
"mcpServers": {
"clearbar": {
"url": "https://clearbar.grain64.com/mcp"
}
}
}
{
"servers": {
"clearbar": {
"type": "http",
"url": "https://clearbar.grain64.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://clearbar.grain64.com/mcp
Tools 2 found in our last check
list_verdictsWhich LLM is the cheapest that still passes? Lists every published Clearbar verdict: the task, the pass bar, the cheapest passing model, its cost per successful task (retries and failures counted) and the page to check it. Optional filter by task type.
get_verdictThe full verdict for one task: the cheapest model that clears the bar, its pass rate and cost per successful task in US dollars, the baseline model it is compared with, every candidate's status, plus links to the verdict page, the run file (JSON) and the script that re-runs it.…
Details
| Endpoint | https://clearbar.grain64.com/mcp (Streamable HTTP) |
| First published | 13 Nov 2026 |
| Last updated | 13 Nov 2026 |
| Registry name | com.grain64/clearbar |
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