OrcavsTura
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Orca
Stably AI · Agent harness
OSS
Panel
6.33 spec wins
- Reliability
- 5.8
- Usefulness
- 6.5
- Cost
- 6.7
- Longevity
- 6.0
“The Android app is at version 0.0.47, so it has shipped forty-seven times without anyone committing to version one.”
Tura
Tura-AI · Agent harness
OSS
Panel
6.34 spec wins
- Reliability
- 5.3
- Usefulness
- 5.7
- Cost
- 8.8
- Longevity
- 5.2
“It optimizes token usage by turning multi-turn ReAct sessions into single-turn command graphs, but has no sandbox for execution.”
Spec by spec
| Spec | Orca | Tura |
|---|---|---|
| Architecture | ||
| Category | Agent harness | Agent harness |
| Runs | local | local |
| Platforms | macos, windows, linux | macos, linux, windows |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | No |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | No | Yes |
| Git operations | Yes | Yes |
| Browser control | Yes | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | Yes | No |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | via managed agents (Claude Code, Codex, Grok, Gemini, Cursor, GitHub Copilot, OpenCode, Amp, Pi, Hermes Agent, Goose and others) | |
| Bring your own model | No | Yes |
| Local models | No | Yes |
| Cost | ||
| Pricing model | free | free |
| Starts at | $0/mo | n/a |
| Free tier | Yes | Yes |
| Bring your own key | No | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | open-source |
| GitHub stars | 83,326 | 646 |
Which one would each critic pick
| Critic | Orca | Tura | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 7.0 | 7.3 | Tura — Pick Tura if you are an open-source developer building agents and want to drastically cut your token bill without sacrificing performance. |
| El Crítico | 5.3 | 5.3 | no preference |
| El Profesor | 6.0 | 7.0 | Tura — Tura presents a principled architectural alternative to standard ReAct loops, supported by self-published, reproducible benchmarks that demonstrate a clear cost-performance trade-off. |
| La Inversora | 5.5 | 6.5 | Tura — A clever token-optimization play, but a feature looking for a platform; the lack of a business model makes it a risky dependency. |
| La Jefa | 6.0 | 4.0 | Orca — Anonymous usage data is collected with an opt-out, there is no SSO, no plan and no vendor contact beyond a GitHub repo; approved with conditions as a personal tool. |
| El Hacker | 7.8 | 7.5 | Orca — MIT, brew cask and an AUR package, and a CLI with orca worktree create, snapshot, click and fill so I can script the window; no MCP, no model settings. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.