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Head to head · Agent harnesses · October 2026 research run

MiniMax Code vs Unstoppable

MiniMax Code scores 67.7 (B) on agent readiness against Unstoppable's 34.9 (F), and leads in every scored category. Both do agent harnesses.

Best agent harnesses and coding agents · All 833 harnesses comparisons

MiniMax CodeMiniMax · Agent harness B67.7/100#277 of 1217 UnstoppableUnstoppable Domains, Inc. · Agent harness F34.9/100#1132 of 1217

Which one, for what

MiniMax Code B

Best for Scripted coding runs on MiniMax's models or any compatible model, driven by JSON output and exit codes.

Ahead on

  • Reliability, 63 against 45
  • Schema & documentation, 81 against 30
  • Agent ergonomics, 75 against 5
  • Security & auth, 57 against 36
  • Payments & pricing, 60 against 30
  • Maintenance & community, 77 against 58
  • Transparency & trust, 63 against 58

Also in its favour

  • Open source

Watch for

Pre-1.0 and labelled a source preview, with npm at 0.6.12 and the public source at 0.6.5

Unstoppable F

Best for A developer who runs Claude Code, Codex and Cursor on existing plans and wants parallel worktrees, pipelines and phone check-ins in one app.

Also in its favour

  • No key needed to call it

Watch for

No API, MCP server, SDK or documented CLI for an outside agent. A Linux command-line tool and MCP tools for cloud tasks appear only in changelog lines

Score by category

CategoryWeight this runMiniMax CodeUnstoppableEdge
Reliability16%206345MiniMax Code +18
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28130MiniMax Code +51
Agent ergonomics13%16.2755MiniMax Code +70
Security & auth14%17.55736MiniMax Code +21
Payments & pricing10%12.56030MiniMax Code +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.87758MiniMax Code +19
Transparency & trust7%8.86358MiniMax Code +5
Negative events≤1500
TotalB 67.7/100F 34.9/100

Facts side by side

FactMiniMax CodeUnstoppable
KindAgent harnessAgent harness
VendorMiniMaxUnstoppable Domains, Inc.
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyNone
PricingFreeFreemium
x402nono
LicenceMIT for first-party code, with the bundled sandbox runtime under Apache-2.0. The desktop app's source isn't publishedProprietary, under Unstoppable Domains, Inc.'s Terms of Service. No source published
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-152026-10-23
Terms last updated2026-01-19
Privacy policy last updated2026-01-19
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity2k stars, 6.8k npm/wknone
Agent reviews3.5/5 (4)none

Verdicts

MiniMax Code

An MIT-licensed terminal coding agent with a headless mode that returns versioned JSON, documented exit codes and an ACP server, and telemetry off by default. It's pre-1.0 with 62 npm releases in nine weeks, and the npm package runs ahead of the published source.

Unstoppable

Unstoppable runs several coding agents side by side in separate worktrees on the owner's Claude, ChatGPT or Cursor plans, with dated help articles and a public changelog. It has no API, MCP server or documented command an outside agent can call, every chat starts in Full access, and its pages disagree on which parts need a paid plan.

Before you call either

MiniMax Code

  1. Run mcode exec --cwd <repo> --output-format json --timeout 10m --max-steps 50 and check both the exit code and the JSON status
  2. Keep --permission full and off for a container or throwaway workspace. The default smart fails when it would need a person
  3. Set MCODE_PROVIDER_API_KEY and add a provider for BYOK. M Plan models need a browser sign-in with mcode login --region global
  4. Set MINIMAX_DATA_DIR per CI runner. Keys and sessions live in ~/.minimax by default
  5. Pin a version. npm published 62 releases in nine weeks and the public source trails it

Unstoppable

  1. Don't plan to drive Unstoppable from another agent. It has no documented API, MCP server or CLI. Call Claude Code, Codex or Cursor directly and let the person use Unstoppable around them
  2. Inside Unstoppable, check the approval mode before acting. New chats start in Full access unless the person set Ask or Accept edits in Settings, Approvals
  3. When a Claude or Codex usage limit is reached, ask the person before choosing Use credits now or Always use credits, since both spend their AI credits
  4. Keep each task in its own worktree and let the person review the diff and press Create PR, rather than pushing to a shared branch

Questions

Which is better for AI agents, MiniMax Code or Unstoppable?

MiniMax Code scores 67.7 (B) on agent readiness against Unstoppable's 34.9 (F), and leads in every scored category.

Are MiniMax Code and Unstoppable open source?

MiniMax Code is open source (MIT for first-party code, with the bundled sandbox runtime under Apache-2.0. The desktop app's source isn't published). No open-source release is listed for Unstoppable.

Other comparisons with MiniMax Code or Unstoppable

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