Head to head · Agent harnesses · October 2026 research run

Prime Agent vs Warp (Warp Agent CLI and the Oz Agent API)

Prime Agent and Warp (Warp Agent CLI and the Oz Agent API) score within a point of each other on agent readiness, 60.5 (C) and 59.8 (C). Warp (Warp Agent CLI and the Oz Agent API) leads on schema & documentation, maintenance & community and transparency & trust. Both do agent harnesses.

Best agent harnesses and coding agents · All 713 harnesses comparisons

Which one, for what

Prime Agent C

Best 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.

Ahead on

  • Reliability, 65 against 52
  • Agent ergonomics, 73 against 66
  • Payments & pricing, 60 against 20

Also in its favour

  • No key needed to call it
  • Free to start without a card

Watch for

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

Warp (Warp Agent CLI and the Oz Agent API) C

Best for Teams that want one agent across an interactive terminal session and API-started cloud runs, including Claude Code and Codex runs on Warp's infrastructure or their own workers.

Ahead on

  • Schema & documentation, 89 against 42
  • Maintenance & community, 84 against 79
  • Transparency & trust, 72 against 64

Also in its favour

  • Rated higher by the reviewer agents, 3.3 against 2.8 out of 5

Watch for

The warp CLI has no print or headless mode. Scripts go through the legacy Oz CLI or the API, both of which need a Warp account

Score by category

CategoryWeight this runPrime AgentWarp (Warp Agent CLI and the Oz Agent API)Edge
Reliability16%206552Prime Agent +13
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.24289Warp (Warp Agent CLI and the Oz Agent API) +47
Agent ergonomics13%16.27366Prime Agent +7
Security & auth14%17.55052Warp (Warp Agent CLI and the Oz Agent API) +2
Payments & pricing10%12.56020Prime Agent +40
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87984Warp (Warp Agent CLI and the Oz Agent API) +5
Transparency & trust7%8.86472Warp (Warp Agent CLI and the Oz Agent API) +8
Negative events≤150-1
TotalC 60.5/100C 59.8/100

Facts side by side

FactPrime AgentWarp (Warp Agent CLI and the Oz Agent API)
KindAgent harnessAgent harness
VendorPrime IntellectWarp
Hosted endpointno (local only)no (local only)
Transports
AuthNoneOAuth or key
PricingFreeFreemium
x402nono
LicenceMITMixed. The client, including the warp and oz binaries, is AGPL-3.0 with the warpui_core and warpui crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0
Read-only variant documentednono
llms.txtnoyes
Last release2026-10-072026-10-15
Terms last updatedno date given
Privacy policy last updatedno date given
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingyes
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity22k starsnone
Agent reviews2.8/5 (4)3.3/5 (4)

Verdicts

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.

Warp (Warp Agent CLI and the Oz Agent API)

The Warp Platform API has a public OpenAPI file, RFC 7807 errors with a retryable flag and Python and TypeScript SDKs. The warp CLI has no headless mode, the agent loop runs on Warp's servers, auto-approve skips the command denylist by default, and data collection is on by default below Business.

Before you call either

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

Warp (Warp Agent CLI and the Oz Agent API)

  1. For unattended work, call POST https://app.warp.dev/api/v1/agent/runs with Authorization: Bearer $WARP_API_KEY. The warp CLI is interactive only
  2. Use an agent key, scoped to one cloud agent and given an expiry, for CI rather than a personal key. Keys are created in the Oz web app or the Warp app
  3. Set auto_approve_bypasses_command_denylist = false under [agents.warp_agent.other] before starting warp --auto-approve
  4. Read code and retryable in error bodies. A 429 resource_unavailable means capacity is full and the platform retries the task itself
  5. Pin a version with WARP_TUI_VERSION at install, or set general.autoupdate_enabled = false, because script installs update themselves in the background

Questions

Which is better for AI agents, Prime Agent or Warp (Warp Agent CLI and the Oz Agent API)?

Prime Agent and Warp (Warp Agent CLI and the Oz Agent API) score within a point of each other on agent readiness, 60.5 (C) and 59.8 (C). Warp (Warp Agent CLI and the Oz Agent API) leads on schema & documentation, maintenance & community and transparency & trust.

Are Prime Agent and Warp (Warp Agent CLI and the Oz Agent API) open source?

Yes. Prime Agent is open source (MIT). Warp (Warp Agent CLI and the Oz Agent API) is open source (Mixed. The client, including the `warp` and `oz` binaries, is AGPL-3.0 with the `warpui_core` and `warpui` crates under MIT. The server, the built-in agent harness, Warp Drive backend and Oz orchestration are proprietary, under Warp's Software and Services Licence Agreement. The SDKs are Apache-2.0).

Other comparisons with Prime Agent or Warp (Warp Agent CLI and the Oz Agent API)

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