OpenCode vs Claude Code vs Codex CLI (May 2026)

OpenCode broke through 147,000 GitHub stars and 6.5 million monthly developers by April 2026 — growing roughly 4.5x faster than Claude Code in star velocity over the prior two months. That’s the headline. Below the headline, the three terminal-native coding agents have settled into clear positions: Claude Code = best out-of-the-box, OpenCode = best vendor freedom, Codex CLI = best for OpenAI shops. Here’s how to pick in May 2026.

Last verified: May 3, 2026

At a glance

Feature	OpenCode	Claude Code	Codex CLI
License	Apache 2.0 (open source)	Proprietary	Proprietary
GitHub stars (May 2026)	~147K	~170K (incl. Superpowers/ECC ecosystem)	(CLI repo, smaller)
Default model	User pick	Sonnet 4.7 / Opus 4.7	GPT-5.5
Multi-vendor support	Yes (Anthropic, OpenAI, Google, DeepSeek, Qwen, Kimi, local)	Anthropic-only	OpenAI-only
Local models (Ollama, vLLM)	Yes, native	No	No
Skills / plugins	Yes (growing)	Largest ecosystem (Superpowers 174K+ stars)	Smaller
MCP support	Yes	Yes	Yes
Pricing	Free + bring-your-own-key	Anthropic API or Pro/Max ($100-200/mo)	$20/mo (Plus) or $200/mo (Pro)
Best for	Multi-vendor teams, cost-sensitive, local-first	Single-vendor depth, max capability	OpenAI shops, GPT-5.5 fans

OpenCode — fastest-growing terminal agent of 2026

OpenCode’s growth from ~100K stars in February 2026 to ~147K in April 2026 is the standout story. Three drivers:

• Vendor freedom. A single config switches between Anthropic Sonnet 4.7, OpenAI GPT-5.5, Google Gemini 3.1 Pro, DeepSeek V4 Pro, Qwen 3.6, Kimi K2.6, or any local model via Ollama / vLLM. No tool in Claude Code’s or Codex CLI’s class can do this natively.
• No subscription gate. Bring your own keys (or run local). Several published walkthroughs show OpenCode running entirely on a single MacBook Pro M4 Max with Qwen 3.6 32B at usable speeds.
• Active skill ecosystem. OpenCode plugs into the same Claude Code Superpowers / ECC ecosystem (Markdown skills shared across harnesses), so the moat that Anthropic was building around skills is leaking into OpenCode by design.

Wins: vendor freedom, free to run, fastest star velocity in coding agents in 2026, works with local models, MCP first-class.

Loses: UX is less polished than Claude Code; sub-agent orchestration is shallower than Claude Code’s Task tool; community plugins still lag the Anthropic ecosystem in count.

Best for: teams that don’t want to bet on one vendor, cost-sensitive shops, developers running local models on M4 Max / 4090 / RTX 5090 hardware, anyone burned by Anthropic or OpenAI rate limits.

Claude Code — deepest single-vendor experience

Claude Code remains the deepest single-vendor terminal coding experience in May 2026, anchored by:

• Skills + plugins. The “Everything Claude Code” / Superpowers ecosystem is at 170K+ stars combined and still leads in skill count.
• Sub-agents (Task tool). Claude Code’s autonomous sub-agent orchestration is more mature than OpenCode’s or Codex CLI’s equivalents.
• Model quality. Sonnet 4.7 is the best ergonomic everyday model and Opus 4.7 leads SWE-Bench Pro (64.3%) for production-relevant tasks.
• April 2026 v2.0.0-rc.1. Rust-based control plane, operator workflows, and a desktop dashboard GUI shipped April 28 — meaningful infrastructure upgrades for production teams.

Wins: strongest skill/plugin ecosystem, Opus 4.7 for hard tasks, Sonnet 4.7 for everyday, mature sub-agents, growing operator/dashboard story.

Loses: single vendor (Anthropic-only), no local model support, requires Anthropic API or Claude Pro/Max. Cost can scale fast on heavy use.

Best for: teams committed to Anthropic, organizations that want max capability per session, security-sensitive shops that want one vendor’s audit story.

Codex CLI — best for OpenAI-committed teams

OpenAI’s Codex CLI is the natural pick if your team is GPT-5.5-first or already paying for ChatGPT Plus / Pro:

• Bundled with ChatGPT subscriptions. Plus ($20/mo) and Pro ($200/mo) include generous Codex CLI usage at no additional cost — the cheapest entry to a frontier coding agent.
• GPT-5.5 strength. GPT-5.5 leads Terminal-Bench 2.0 (82.7% vs Opus 4.7’s 69.4% and Gemini 3.1 Pro’s 68.5%, per DataCamp’s May 2026 head-to-head). Strong agentic coding and tool use.
• Multi-agent. Codex CLI’s multi-agent orchestration is solid for parallel work and matches the patterns most teams already use.

Wins: included in ChatGPT subscriptions (no additional spend), GPT-5.5 leads Terminal-Bench, decent multi-agent support, solid SWE-bench performance.

Loses: OpenAI-only, no local models, smaller plugin ecosystem than Claude Code, locked to OpenAI’s rate limits and pricing changes.

Best for: ChatGPT Plus / Pro subscribers who already pay OpenAI, teams that prefer GPT-5.5’s agentic style, organizations standardizing on OpenAI for compliance.

Decision tree (May 2026)

• You want one vendor and max capability? → Claude Code with Opus 4.7 + Sonnet 4.7
• You want vendor freedom or local models? → OpenCode
• You’re already paying for ChatGPT Pro? → Codex CLI (zero extra cost)
• You’re cost-sensitive at scale? → OpenCode + DeepSeek V4 Pro or Kimi K2.6 ($0.95/M tok)
• You want the deepest plugin / skill ecosystem? → Claude Code (Superpowers / ECC)
• You’re testing the future of model-agnostic coding? → OpenCode

What changed in April 2026

Tool	April 2026 highlight
OpenCode	Crossed 147K stars, 6.5M monthly devs; vendor list grew to 11 supported model providers
Claude Code	Shipped v2.0.0-rc.1 April 28 with Rust control plane + dashboard GUI; Superpowers ecosystem hit 174K stars
Codex CLI	Continued multi-agent improvements; remained bundled with ChatGPT Plus/Pro at no extra cost

Pricing reality check

• OpenCode + Anthropic API: $0 platform + Claude API metered usage (~$3-15/M input tokens depending on model)
• OpenCode + local Qwen 3.6: $0 platform + electricity. The cheapest viable frontier-capable setup in May 2026.
• Claude Code + Pro: $100/mo flat with usage caps. Max plan is $200/mo with higher caps.
• Codex CLI + ChatGPT Plus: $20/mo, generous limits, no extra agent fee.
• Codex CLI + ChatGPT Pro: $200/mo, very high limits, no extra agent fee.

For a senior developer running 4-8 hours of agent time daily, expect $100-300/month in May 2026 across any of the three. OpenCode + local models is the only setup that can credibly approach $0 marginal cost.

Bottom line

OpenCode is the breakout open-source story of 2026 coding agents — and the right pick for teams that don’t want to be locked to one vendor. Claude Code remains the best out-of-the-box experience and the deepest plugin ecosystem. Codex CLI is the cheapest path to a frontier agent if you already pay for ChatGPT Pro.

Sources: MightyBot 2026 ranked list, Augment Code “Everything Claude Code hits 170K stars,” GitHub repo metrics May 2026, DataCamp Terminal-Bench 2.0 results, BenchLM.ai leaderboard, OpenAI / Anthropic pricing pages.