Pricing at a glance
What each tool costs to start, from list pricing.
| Tool | Free tier | Starting at | Open source |
|---|---|---|---|
 Karpathy Wiki |
Always | $0 | Open method |
 Mitosis Cortex |
7-day trial | $7.99/mo | Closed |
 gbrain |
Pay for embeddings | $0 | Yes |
 Hyperspell |
No cap hit at 200+ | Not Listed | Closed |
 Mem0 |
~550 answers/mo | $19/mo | Core is |
 Anthropic Memory |
Always | $0 | Yes |
 Supermemory |
~800 answers/mo | $19/mo | Yes |
 Zep |
~950 answers/mo | $125/mo | Engine (Graphiti) is |
| Claude Code built-in memoryClaude Code memory | Included with Claude Code | $0 | Bundled |
List prices as of Jul 27, 2026.