Codex vs Claude Code Cost Calculator 2026

Q: What's the difference between Claude Code and the regular Claude API?

Claude Code is Anthropic's agentic coding product — it runs in your terminal, reads your codebase, writes and edits files, and executes commands. It uses the same underlying models (Sonnet 4.6 or Haiku 4.5) as the regular API, billed at the same per-token rates. The 'Claude Max' $200/month subscription is a usage-allowance plan that covers heavy Claude Code usage. If you're a light user, pay-per-token via the API is almost always cheaper.

Q: Is Gemini Code Assist actually free?

Gemini Code Assist has a free tier for individual developers (limited to a certain number of requests per month). Beyond that, API access via Gemini 3.5 Flash costs $0.15 per million input tokens and $3.50 per million output tokens — making it the cheapest major provider for pay-per-token use. The $20/month Google One AI Premium subscription includes Gemini Advanced, which covers Code Assist at moderate volumes.

Q: Can I self-host Qwen 3.7 instead of using the API?

Yes — Qwen 3.7 is open-weight and can be self-hosted on capable hardware. A consumer-grade server or cloud VM with sufficient VRAM (typically 24–48 GB for the full model) runs $10–50/month depending on your setup. Once running, token costs are effectively $0. This is ideal for high-volume, privacy-sensitive workloads. The tradeoff is setup complexity, maintenance burden, and potentially lower throughput than hosted APIs.

Q: At what usage level does a subscription beat pay-per-token?

The crossover depends on your token consumption per task. For Codex (GPT-5.4): at 2,000 input / 1,500 output tokens per task, the $200/month ChatGPT Pro subscription breaks even at roughly 38 tasks/day. Claude Max ($200/month with Sonnet 4.6) breaks even at around 27 tasks/day. Gemini Advanced ($20/month) breaks even at just 5–6 tasks/day given Gemini's low API rates. This calculator shows the exact crossover for your specific token inputs.

Last updated: May 2026

Enter your daily coding workload and see the real monthly cost across Codex (OpenAI), Claude Code (Anthropic), Gemini Code Assist (Google), and Qwen 3.7 — API costs and subscription options side by side.

May 2026 — Codex on mobile

Codex just launched on mobile with 4 million weekly users. If you're doing 20+ coding tasks per day solo, the $200/mo ChatGPT Pro subscription often beats pay-per-token past a certain threshold — this calculator shows exactly where that crossover happens.

Task Token Config

Quick presets:

Input tokens per task (context + prompt)

Output tokens per task (code generated)

Usage & Team

Usage mode

Coding tasks per day (1–200)

Team size (1–50 devs)

Monthly Cost Comparison

Prices as of May 2026. Subscription prices subject to change. Verify at provider pricing pages.

Tool Comparison

Tool	Provider	Monthly Cost	Per Task	Subscription	Best For

Subscription Break-Even

Team Cost Projection

Team Size	Codex	Claude Code	Gemini	Qwen (Groq)

Team costs multiply per-developer monthly API cost by team headcount. Subscription plans may offer team discounts not reflected here.

How this calculator works

Each coding task consumes a fixed number of input tokens (the context you send: file content, instructions, history) and output tokens (the code the model generates). Monthly API cost is:

Monthly cost = (input_tokens × input_rate + output_tokens × output_rate) × tasks_per_day × 30 × team_size

For subscription mode, the calculator shows the flat monthly rate rather than computed token costs — useful for checking whether a subscription is cheaper at your usage level. The break-even section calculates the exact tasks-per-day threshold where switching to a subscription saves money.

Qwen 3.7 local cost assumes ~$30/month in server or cloud VM costs with no per-token charge after that. Actual hardware costs vary widely.

Frequently Asked Questions

Is Codex free or does it cost money?

Codex (powered by GPT-5.4) is not free for API usage — it costs $2.50 per million input tokens and $15.00 per million output tokens as of May 2026. However, if you already subscribe to ChatGPT Pro at $200/month, you get unlimited Codex access at no additional API cost. For heavy solo developers doing 20+ tasks per day, the Pro subscription often comes out cheaper than pay-per-token. This calculator shows exactly where that crossover happens for your usage.

What's the difference between Claude Code and the regular Claude API?

Claude Code is Anthropic's agentic coding product that runs in your terminal, reads your codebase, writes files, and executes commands autonomously. It uses the same underlying models — Claude Sonnet 4.6 or Haiku 4.5 — billed at identical per-token API rates ($3.00/$15.00 per million for Sonnet, $1.00/$5.00 for Haiku). The Claude Max subscription at $200/month is a high-usage allowance plan covering heavy Claude Code sessions. Light users pay far less via API.

Is Gemini Code Assist actually free?

Gemini Code Assist has a limited free tier for individual developers. Beyond that threshold, API access via Gemini 3.5 Flash costs $0.15 per million input tokens and $3.50 per million output tokens — the cheapest API rate among the four major providers. The $20/month Google One AI Premium subscription includes Gemini Advanced and covers Code Assist at moderate volumes, making it a standout value for cost-conscious teams. Verify current free tier limits at Google's pricing page.

Can I self-host Qwen 3.7 instead of using the API?

Yes — Qwen 3.7 is open-weight and fully self-hostable. You need hardware with sufficient VRAM (typically 24–48 GB for the full model at reasonable speed). A capable cloud VM runs roughly $10–50/month. Once running, the per-token cost is essentially $0. This makes it ideal for high-volume, privacy-sensitive workloads where you don't want tokens leaving your infrastructure. The tradeoff: setup complexity, ongoing maintenance, and potentially lower throughput than a managed API.

At what usage level does a subscription beat pay-per-token?

The crossover depends entirely on your token consumption per task. With default settings (2,000 input / 1,500 output tokens per task, 1 developer): Codex subscription ($200/mo) breaks even around 38 tasks/day. Claude Code Max ($200/mo with Sonnet 4.6) breaks even around 27 tasks/day. Gemini Advanced ($20/mo) breaks even at just 5–6 tasks/day due to Gemini's low API rates. Adjust the sliders above and watch the break-even section update live.