Aider: how many tokens per task, and what does it cost?
Aider costs $0.48 per task ($0.71 per solved task at a 67.5% success rate). AgentBurn snapshot 2026-10-27. Every figure carries a provenance label: source-backed, derived, or left empty when no public basis exists.
What it is. Git-native pair programmer that edits your repo from the terminal
Aider is a terminal pair programmer that maps the repository, proposes edits and commits every change to git with a generated message. Because it sends a compact repo map instead of whole files it stays among the cheapest agents per solved task: the 2026 TrustTheBench sweep put it at 67.5% on SWE-bench Verified for about $0.48 per task.
| Tokens per task | not published | Not published |
|---|---|---|
| Cost per task | $0.48 | Source-backed |
| Success rate | 67.5% | Source-backed |
| Cost per solved task | $0.71 | — |
| Tool calls per task | not published | — |
| Retry overhead | not published | — |
| Minutes per task | not published | — |
| Estimated runs per day | 120,000 (model estimate) | Model estimate |
Where the tokens go
This is the per-task split AgentBurn records for Aider, step by step.
| Step | What happens | Share of tokens | Tool calls |
|---|---|---|---|
| Build repo map | Generates a compact map of files, symbols and sizes | 14% | 4 |
| Locate code | Searches for the functions named in the request | 18% | 9 |
| Propose edit | Emits a search/replace diff for review | 26% | 8 |
| Apply and test | Applies the diff and runs the test command | 28% | 10 |
| Commit | Writes a conventional commit for the change | 14% | 4 |
What each number is based on
AgentBurn labels every field. Source-backed means the cited page states the figure; derived means a formula on this page produced it; not published means no public basis exists and the field is left empty rather than estimated.
| Field | Basis | Note |
|---|---|---|
| tokensPerTask | Not published | TrustTheBench does not publish token counts. |
| costPerTaskUsd | Source-backed | TrustTheBench 2026 leaderboard — Aider: SWE-bench score 77.0, $0.48/task. |
| successRatePct | Source-backed | TrustTheBench 2026 leaderboard — Aider success 67.5% (resolved 65.0%). |
| runsPerDay | Model estimate | No public source publishes daily run volume; this is a model estimate from pricing tiers and community reports, shown only in estimated-volume context. |
Frequently asked
How many tokens does Aider use per task?
No public tokens-per-task figure exists for Aider; AgentBurn leaves the field empty rather than estimating it.
What does Aider cost per task?
$0.48 per task, based on the source linked in the provenance table.
What is the cost per solved task for Aider?
$0.71 — cost per task divided by a 67.5% success rate, so retries are already inside the figure.
Sources
- TrustTheBench — Autonomous Coding Agents Leaderboard 2026 (SWE-bench Verified and cost per task)
- Vendor site: https://aider.chat
- Repository: https://github.com/Aider-AI/aider
- Open dataset: /data/projects.json
- Methodology: how these numbers are built
Cite this page
AgentBurn (2026-10-27). "Aider". https://getagentburn.com/projects/aider/
Machine-readable: projects.json · Markdown version