Everyone talks about $20/month subscriptions. Nobody talks about the token bill hiding behind them.
Here’s what different coding agents actually cost when you factor in API usage, not just the subscription price.
Subscription Costs (what you see)
| Agent | Subscription | What you get |
|---|---|---|
| Claude Code | $20-200/mo | Anthropic API included at higher tiers |
| Cursor | $20-200/mo | Included API credits vary by tier |
| Copilot CLI | $10-39/mo | Included with GitHub subscription |
| Hermes | Free (open source) | BYO API keys |
| OpenCode | Free (open source) | BYO API keys |
| Codex CLI | Free (open source) | BYO API keys |
| Oh My Pi | Free (open source) | BYO API keys |
| Kilo Code | Free (open source) | BYO API keys |
The Hidden Cost: API Tokens
For open-source agents, the real cost is API tokens. Here’s a rough estimate based on typical usage patterns:
| Usage level | Tokens/month | Estimated cost |
|---|---|---|
| Light (a few tasks/day) | 1-5M tokens | $15-75 |
| Moderate (hourly use) | 10-30M tokens | $150-450 |
| Heavy (all-day coding) | 50-100M tokens | $750-1500 |
These numbers vary wildly based on which model you use, how much context your codebase has, and whether you’re doing simple edits or complex refactors.
Model Pricing Breakdown
The model you choose is the biggest variable in your bill. Not all tokens cost the same:
| Model | Input (per 1M tokens) | Output (per 1M tokens) | Best for |
|---|---|---|---|
| Claude 3.5 Haiku | $0.80 | $4.00 | Routine edits, file ops |
| Claude 3.5 Sonnet | $3.00 | $15.00 | Most coding tasks |
| Claude 3 Opus | $15.00 | $75.00 | Complex architecture, deep reasoning |
| GPT-4o | $2.50 | $10.00 | General coding, multimodal |
| GPT-4o-mini | $0.15 | $0.60 | Simple refactors, formatting |
| Gemini 2.5 Pro | $1.25-2.50 | $10-15.00 | Large codebase context |
| DeepSeek V3 | $0.27 | $1.10 | Budget coding tasks |
A typical coding session sends 10-30K input tokens and generates 2-8K output tokens. If you’re using Opus for everything, that’s $1-3 per session. Haiku for the same work? Under $0.05.
Real-World Cost Scenarios
Solo developer, light use (2-3 hours/day)
- Hermes + Haiku for routine tasks: ~$20/mo
- Claude Code Pro ($20/mo) + moderate Sonnet usage: ~$80/mo
- Cursor Pro ($20/mo) + included credits: ~$20-40/mo
Team of 5, daily use
- Each dev on Hermes + Sonnet: ~$300/mo per person = $1,500/mo total
- Each dev on Claude Code Max ($100/mo): ~$100-200/mo per person = $500-1,000/mo total
- Each dev on Cursor Business ($40/mo): ~$40-80/mo per person = $200-400/mo total
Power user, all-day coding
- Hermes with model routing (Haiku for simple, Opus for complex): ~$150-300/mo
- Claude Code Max ($200/mo) + heavy usage: ~$200-500/mo
- Cursor Pro ($20/mo) + heavy API: ~$200-400/mo
The Claude Code vs OpenCode comparison breaks down how free CLI agents with BYO keys compare on features, and the Hermes vs OpenCode faceoff covers what you trade off between convenience and cost control. Oh My Pi’s usage CLI reporting is one of the few tools that shows you actual token spend per session.
The Real Takeaway
Subscription cost is a distraction. Token efficiency is the real metric. An agent that costs $20/month but burns $500 in tokens is more expensive than a free agent that burns $100 in tokens.
The best cost strategy? Use multiple agents:
- Hermes for routine work (route to cheap models like Haiku)
- Claude Code for hard problems (use Opus for complex reasoning)
- Cursor for IDE-integrated work (balances convenience and cost)
Your total cost stays manageable because you’re not using a sledgehammer for every task.
Note: Specific token costs depend heavily on your model choices and usage patterns. The estimates above are rough ranges, not guarantees.
Related articles
- Claude Code Alternatives in 2026: 12 Options Compared
- Claude Code: Skills vs Subagents vs MCP — The 2026 Decision Guide
- Coding Agents in 2026: Three Hard Lessons HN Developers Learned the Expensive Way
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