KoogvsLangGraph4j
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Koog
JetBrains · Agent framework
OSSMCP
Panel
6.72 spec wins
- Reliability
- 6.3
- Usefulness
- 6.7
- Cost
- 7.7
- Longevity
- 6.0
“JetBrains runs a separate continuous integration job just for Ollama, which is more commitment to local models than most vendors manage.”
LangGraph4j
LangGraph4j · Agent framework
OSS
Panel
6.80 spec wins
- Reliability
- 6.3
- Usefulness
- 6.3
- Cost
- 8.3
- Longevity
- 6.3
“It integrates with Spring, so your agent can now be configured by three annotations and a person who has never met it.”
Spec by spec
| Spec | Koog | LangGraph4j |
|---|---|---|
| Architecture | ||
| Category | Agent framework | Agent framework |
| Runs | local | local |
| Platforms | macos, linux, windows | macos, linux, windows |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | Yes | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | No | No |
| Multi-file edits | No | No |
| Git operations | No | No |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | Yes | YesThe library's stated purpose is stateful multi-agent applications, where nodes collaborate or hand off tasks over a shared state. |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | any | any model reachable through LangChain4j or Spring AI |
| Bring your own model | Yes | Yes |
| Local models | Yes | YesModel access is delegated to LangChain4j or Spring AI, both of which support local runtimes such as Ollama. |
| Cost | ||
| Pricing model | byok | free |
| Starts at | n/a | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | Apache-2.0 | MIT |
| GitHub stars | 4,598 | 2,033 |
Which one would each critic pick
| Critic | Koog | LangGraph4j | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 6.8 | 7.0 | LangGraph4j — Pick it if your platform is the JVM and leaving it is not on the table; pick the Python original if nothing is stopping you from choosing a language. |
| El Crítico | 6.0 | 6.5 | LangGraph4j — Cycles are the stated advantage over a directed acyclic graph, and nothing documented bounds how many times a node may loop back before somebody reads the invoice. |
| El Profesor | 6.8 | 7.5 | LangGraph4j — Every node reads and updates one shared state object, and checkpoint saver modules persist it, so the graph's memory is an explicit structure rather than an accumulated conversation. |
| La Inversora | 6.3 | 6.5 | LangGraph4j — 1,973 stars for a port that inherits another project's design decisions: the roadmap lives upstream, and there is no company here to change that or to be acquired. |
| La Jefa | 6.5 | 6.3 | Koog — It integrates with Spring Boot and Ktor, so it deploys into services we already run, and support goes through the vendor's existing issue tracker rather than a stranger's inbox. |
| El Hacker | 7.8 | 7.3 | Koog — Apache-2.0, one Maven coordinate, Ollama is in the provider list with its own continuous integration workflow, and agents can be exposed over ACP as well as consuming MCP tools. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.