IOSM CLIvsOpenClaude
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
IOSM CLI
rokoss21 · Terminal agent
#241OSSMCP
Panel
5.20 spec wins
- Reliability
- 4.8
- Usefulness
- 5.2
- Cost
- 7.2
- Longevity
- 3.7
“Recent releases lead with configurable keybindings, which is one way to announce that the hard part is finished.”
OpenClaude
Gitlawb · Terminal agent
#225OSSMCP
Panel
5.33 spec wins
- Reliability
- 4.8
- Usefulness
- 6.2
- Cost
- 6.7
- Longevity
- 3.7
“/buddy hatches a pixel-art archer who fires an arrow every time you press Enter, which is more feedback than most agents give.”
Spec by spec
| Spec | IOSM CLI | OpenClaude |
|---|---|---|
| Architecture | ||
| Category | Terminal agent | Terminal agent |
| Runs | local | local |
| Platforms | macos, linux, windows | macos, linux, windows |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | Yes | Yes |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | Yes |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | Yes | Yes |
| Headless / CI mode | No | Yes |
| Models | ||
| Backbone | multiple providers | OpenAI, OpenRouter, DeepSeek, Groq, Mistral, Gemini, GitHub Models, Codex, GLM, Fireworks, Ollama, LM Studio |
| Bring your own model | Yes | Yes |
| Local models | No | Yes |
| Cost | ||
| Pricing model | byok | byok |
| Starts at | $0/mo | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | MIT (contributor modifications; derived Claude Code portions remain Anthropic's) |
| GitHub stars | 144 | 33,610 |
Which one would each critic pick
| Critic | IOSM CLI | OpenClaude | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 5.8 | 6.0 | OpenClaude — Pick OpenClaude if you liked Claude Code's workflow and your budget or your models live on DeepSeek, Groq, GLM or a local server; pick OpenCode if you want a clean-room agent without the ancestry. |
| El Crítico | 5.0 | 5.3 | OpenClaude — A fresh install defaults to Gitlawb Opengateway, which requires a key from the maintainer's own site; the forked-conversation feature is documented candidly as branching with no filesystem isolation. |
| El Profesor | 5.0 | 5.0 | no preference |
| La Inversora | 4.5 | 4.5 | no preference |
| La Jefa | 5.0 | 4.8 | IOSM CLI — No licence cost across sixty engineers, and the layered policy engine is the only artefact here I could put in front of a security reviewer without apologising. |
| El Hacker | 6.0 | 6.5 | OpenClaude — MIT for the contributors' changes while the derived Claude Code portions remain Anthropic's, CLAUDE_CODE_USE_OPENAI=1 plus a base URL for Ollama, and per-agent model routing in settings.json. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.