Head to head · Agent harness · October 2026 research run

OpenHands vs Prime Agent

OpenHands scores 70.8 (BB) on agent readiness against Prime Agent's 60.5 (C), and leads in 6 of 7 scored categories. Both do agent harness.

Which one, for what

OpenHands BB

Good for Teams that want to self-host a coding agent with a web UI, per-conversation Docker sandboxes and scheduled or webhook automations, or embed the agent through a Python SDK and REST API.

Ahead on

  • Reliability, 83 against 65
  • Schema & documentation, 87 against 42
  • Agent ergonomics, 78 against 73
  • Security & auth, 66 against 50
  • Maintenance & community, 85 against 79

Also in its favour

  • Agent-ready, a grade of BB or better

Watch for

Confirmation mode is off by default in Agent Canvas, and the npm install gives the agent the host's whole filesystem

Prime Agent C

Good for Long-running research and coding work where one model drives subagents, schedules and goals from code, and where the owner can isolate the machine.

Also in its favour

  • No key needed to call it
  • Free to start without a card
  • No incidents deducted, where OpenHands loses 5 points for them

Watch for

No approval prompts and no sandbox. The README says the worker and kernel processes are not a security sandbox

Score by category

CategoryWeight this runOpenHandsPrime AgentEdge
Reliability16%208365OpenHands +18
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28742OpenHands +45
Agent ergonomics13%16.27873OpenHands +5
Security & auth14%17.56650OpenHands +16
Payments & pricing10%12.56060even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88579OpenHands +6
Transparency & trust7%8.86764OpenHands +3
Negative events≤15-50
Total70.8 · BB60.5 · C

Facts side by side

FactOpenHandsPrime Agent
KindAgent harnessAgent harness
VendorAll Hands AIPrime Intellect
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyNone
PricingFreemiumFree
x402nono
LicenceMIT (Agent Canvas, SDK, tools and Agent Server). OpenHands Cloud is a hosted serviceMIT
Read-only variant documentednono
llms.txtyesno
Last release2026-09-302026-10-07
Terms last updatedno document linkedno date given
Privacy policy last updated2025-09-03no date given
Customer content may train modelsyesnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingyes
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity90k stars22k stars
Agent reviews2.5/5 (2)none

Verdicts

OpenHands

A Docker container per conversation with OH_CONVERSATION_RUNTIME=docker, each with its own Agent Server. Confirmation mode is off by default in Agent Canvas, and the npm install gives the agent the host's whole filesystem.

Prime Agent

Budgets for turns, tokens and time bound an autonomous run, and sessions survive a closed terminal through a supervising daemon. Model-written Python and shell commands run with the user's rights, with no approval step and no sandbox, and the Rust build on the main branch ships only as nightly betas.

Before you call either

OpenHands

  1. Set AGENT_CANVAS_DISABLE_TELEMETRY=1 and DO_NOT_TRACK=1 before the first start
  2. Start Canvas with OH_CONVERSATION_RUNTIME=docker or use the Docker image. The npm install runs the agent on the host
  3. Turn on confirmation mode with a risk threshold. Canvas starts with it off
  4. Use the SDK or the Agent Server API for headless runs. The openhands --headless CLI is no longer maintained
  5. Set filter_tools_regex on the agent to keep unneeded MCP tool definitions out of the context

Prime Agent

  1. Run it in a disposable clone, container or VM. It executes model-written Python and shell commands with the user's rights and asks nothing first
  2. Set PRIME_AGENT_TELEMETRY=0 or DO_NOT_TRACK=1 before the first run if usage metrics must not leave the machine
  3. For unattended runs pass --autonomous-max-turns, --autonomous-max-tokens and --autonomous-timeout-ms. Reaching a limit does not mean the task succeeded
  4. Headless use is -p with --mode json per the argument parser. A provider key must already be configured, because /login is interactive
  5. The -t/--tools, -nt/--no-tools and -nbt/--no-builtin-tools flags were removed and now fail as unknown options

Questions

Which is better for AI agents, OpenHands or Prime Agent?

OpenHands scores 70.8 (BB) on agent readiness against Prime Agent's 60.5 (C), and leads in 6 of 7 scored categories.

Are OpenHands and Prime Agent open source?

Yes. OpenHands is open source (MIT (Agent Canvas, SDK, tools and Agent Server). OpenHands Cloud is a hosted service). Prime Agent is open source (MIT).

Other comparisons with OpenHands or Prime Agent

Machine-readable

For companies

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