Since June 1, 2026, GitHub Copilot no longer runs on a flat subscription. Every model interaction now draws from a monthly credit balance and if your team uses agent mode, the first full billing cycle may have been a shock.
What changed
GitHub replaced its „Premium Request Units” model with GitHub AI Credits. One credit equals $0.01 USD. Code completions remain unlimited and free they don’t touch the credit balance. The meter starts when you open chat, use agent mode, run Copilot CLI, or trigger code review.
| Plan | Monthly price | Included credits |
|---|---|---|
| Copilot Pro | $10 | 1,500 |
| Copilot Pro+ | $39 | 7,000 |
| Copilot Business | $19/seat | 1,900/seat |
| Copilot Enterprise | $39/seat | 3,900/seat |
| Copilot Max | $100 | 20,000 |
Why agent mode drains credits fast
GitHub’s own research published in May 2026 found that agentic tasks consume roughly 1,000× more tokens than a single-turn query. A single agent session writing a meaningful diff on a powerful model runs 600–1,200 credits ($6–12) in one interaction.
Output tokens cost 4–6× more than input tokens on every model:
| Model | Input (per 1M tokens) | Output (per 1M tokens) |
|---|---|---|
| Claude Opus | $5 | $25 |
| Claude Sonnet | $3 | $15 |
| Claude Haiku | $1 | $5 |
| GPT-5.5 | $5 | $30 |
| Gemini 3.5 Flash | $1.50 | $9 |
What the first billing cycle actually looked like
The first complete 30-day cycle closed on June 30, 2026. Real cases reported by developers:
- One developer watched 82% of their monthly Pro allowance disappear on day one
- A single agentic session cost $38 – nearly 4× the entire $10 Pro monthly budget
- Teams reported effective costs jumping from $29 to $750 and from $50 to $3,000
The detail most coverage misses
By default, when your included credits run out, Copilot keeps working and bills overage with no cap. There is no automatic spending limit. GitHub added the control on July 2, 2026, but you have to turn it on manually:
Settings → Billing → GitHub Copilot → Set spending limit
Set it to $0 for a hard stop when credits run out. Teams on Business and Enterprise plans also have AI Credit Pools – admins can cap how much of the shared monthly allowance any single user or cost center draws down.
Why this matters for development teams
GitHub Copilot’s flat-rate advantage, the reason many teams chose it over alternatives effectively ended on June 1. Engineers doing heavy agent mode work are now paying API-equivalent rates, just routed through GitHub’s billing. The math on Copilot Pro vs Claude Code or Cursor Pro is now worth running for your actual usage pattern.
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Source: GitHub Copilot is moving to usage-based billing – GitHub Blog; GitHub Copilot Billing Shock Confirmed – TechTimes, June 29, 2026; Models and pricing for GitHub Copilot – GitHub Docs
