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Best for large or legacy codebases
Understands a million-line monorepo, not just the open file.
Preliminary · based on public infoShort answer: pick Claude Code. Runner-up: Augment Code. On a budget: Amp (Sourcegraph).
Claude Code
Included in Claude Pro $20/mo ($17/mo annual); Max from $100/mo; Team/Enterprise available.
Visit siteAugment Code
Standard $20/mo flat (up to 50 seats, $20 usage included); Business $100/mo flat ($100 usage); Enterprise custom.
Visit siteAmp (Sourcegraph)
Hobby free (BYOK, pay-as-you-go orbs); Individual from $20/mo (higher tiers listed); Teams no extra charge.
Visit siteScored ranking
| # | Tool | Score /100 | Status | Pricing |
|---|---|---|---|---|
| 1 | Claude Code | 84 | Preliminary · based on public info | Included in Claude Pro $20/mo ($17/mo annual); Max from $100/mo; Team/Enterprise available. Price checked 2026-10-14 |
| 2 | Augment Code | 80 | Preliminary · based on public info | Standard $20/mo flat (up to 50 seats, $20 usage included); Business $100/mo flat ($100 usage); Enterprise custom. Price checked 2026-10-14 |
| 3 | Greptile | 74 | Preliminary · based on public info | Starter free (1 dev, 50 credits/mo); Pro $30/seat/mo (50 credits/seat, extra $1 each); Enterprise custom; free for qualified OSS. Price checked 2026-10-14 |
| 4 | Amp (Sourcegraph) | 73 | Preliminary · based on public info | Hobby free (BYOK, pay-as-you-go orbs); Individual from $20/mo (higher tiers listed); Teams no extra charge. Price checked 2026-10-14 |
Scores are editorial estimates from vendor documentation and public reporting, applied using our rubric. A "partly hands-on tested" badge means some fixed tasks were run (see the tool's test log), but the score itself has not been re-derived from tests yet.
FAQ
What is the best tool for large or legacy codebases?
Our current pick is Claude Code, with Augment Code as runner-up and Amp (Sourcegraph) as the budget pick. These are preliminary picks from public information applied to our rubric; check the ranking table for scores and evidence status.
How much does Claude Code cost?
Included in Claude Pro $20/mo ($17/mo annual); Max from $100/mo; Team/Enterprise available. (Checked against https://claude.com/pricing on 2026-10-14.)
What is the cheapest good option for large or legacy codebases?
Our budget pick is Amp (Sourcegraph): Hobby free (BYOK, pay-as-you-go orbs); Individual from $20/mo (higher tiers listed); Teams no extra charge.
Which tools did you compare?
We ranked 4 tools: Claude Code (84), Augment Code (80), Greptile (74), Amp (Sourcegraph) (73). Scores are out of 100.
Are these rankings based on hands-on tests?
Not yet. Every score here is preliminary, based on vendor documentation and public reporting. Hands-on results will be published with dated evidence logs.
Do affiliate commissions affect the ranking?
No. Affiliate status is recorded separately and is never a scoring input. See our disclosure page.