59 lines
3.1 KiB
Plaintext
59 lines
3.1 KiB
Plaintext
FREE-TIER AI CODING CLI BRIEF — OCT 2026
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Compiled: 2026-10-28 | Sources: Superblocks (Aug 2026), Paradev (Oct 13 2026)
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Lane: Draft — verifiable, cited, ready to ship.
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1. THE LANDSCAPE IN TWO FACTS
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-----------------------------
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a) Only four major agents offer ANY free tier:
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- OpenAI Codex CLI (limited use via ChatGPT Free; Apache-2.0)
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- Google Antigravity CLI (weekly limits; proprietary)
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- GitHub Copilot CLI (free tier; proprietary)
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- Mistral Vibe (limited free tier; Apache-2.0)
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b) The truly zero-cost path is open-source + bring-your-own-key:
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- OpenCode (MIT, 75+ providers, 214K GitHub stars as of Oct 2026)
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- Pi (MIT, any provider)
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- Hermes Agent (MIT, any provider)
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- Goose (Apache-2.0, 15+ providers)
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2. HEAD-TO-HEAD: THE FREE-TIER RELEVANT ONES
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--------------------------------------------
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Tool | Free tier? | License | Model lock-in | Notes
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----------------|------------|---------|---------------|-------------------------------
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Claude Code | NO | Proprietary | Anthropic only | $20/mo Pro, $100-200/mo Max; deepest reasoning
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OpenAI Codex | Limited | Apache-2.0 | OpenAI only (plans) | Ships Rust CLI; Go $8/mo, Plus $20/mo
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OpenCode | Yes* | MIT | None | 75+ providers; free; $0 if you bring a free/local model
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Antigravity CLI | Yes | Proprietary | Google + others | Weekly limits; free with Google account
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Copilot CLI | Yes | Proprietary | Claude/GPT/Gemini/Grok/Kimi | $10/mo Pro; free tier included
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Mistral Vibe | Yes | Apache-2.0 | Mistral + others | Free tier; Pro $14.99/mo
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Hermes Agent | Yes* | MIT | None | Free open-source agent; any provider via Nous Portal
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*BYOK = bring your own API key or run a local model. Tool is free; you pay the provider.
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3. VERDICT FOR FREE-TIER / SOVEREIGN OPERATORS
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----------------------------------------------
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If you will not pay vendors and want terminal-native coding agents:
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1) OpenCode is the strongest zero-cost CLI — MIT, 75+ providers, subagents, TUI + IDE.
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2) Hermes Agent is equivalent for orchestration (MIT, any provider, subagents, worktrees).
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3) Codex CLI is the best "limited free" from a major lab, but model choice is restricted to OpenAI without an API key.
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4) Claude Code is excluded from the free tier entirely.
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4. ACTIONABLE CHOICE MATRIX
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---------------------------
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Scenario | Pick
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-----------------------------------|-------------------------------
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Zero dollars, any model | OpenCode or Hermes Agent
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Zero dollars, Google ecosystem | Antigravity CLI
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Already paying for ChatGPT Plus | Codex CLI
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Already paying for GitHub Pro | Copilot CLI
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Deep reasoning, budget available | Claude Code Pro ($20)
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5. SOURCES
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----------
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- Superblocks, "9 Best Claude Code Alternatives I Compared for 2026", Aug 11 2026
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https://www.superblocks.com/blog/claude-code-alternative
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- Paradev, "Best AI Coding Agents in 2026: Claude Code, Codex, Antigravity, and 15 More Compared",
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facts checked Oct 13 2026
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https://superset.sh/compare/best-coding-agents
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