Estimate Your Monthly Cost

Enter your expected monthly usage:

Estimated Monthly Cost
Estimated Annual Cost

GPT-5.6 Luna (Economy)

  • Cache writes billed at 1.25x the model's uncached input rate
  • Batch API offers 50% off standard rates for async workloads
  • GA July 9, 2026; rates unchanged from the June 25, 2026 preview

GPT-5.6 Terra (Balanced)

  • Cache writes billed at 1.25x the model's uncached input rate
  • Batch API offers 50% off standard rates for async workloads

GPT-5.6 Sol (Flagship)

  • Cache writes billed at 1.25x the model's uncached input rate
  • Batch API offers 50% off standard rates for async workloads
  • ChatGPT Plus, Pro, Business, and Enterprise users access Sol, Terra, and Luna with selectable effort levels

Compare at This Team Size

Frequently Asked Questions

01 How accurate is this GPT-5.6 (Sol, Terra & Luna) pricing calculator?

This calculator uses official GPT-5.6 (Sol, Terra & Luna) pricing data verified as of 2026-07-19. Hidden cost estimates use industry averages. Actual costs may vary based on negotiated discounts, specific feature requirements, and implementation complexity.

02 What hidden costs should I include in my GPT-5.6 (Sol, Terra & Luna) budget?

Hidden costs vary by vendor and contract. We don't have GPT-5.6 (Sol, Terra & Luna)-specific cost breakdowns yet — see our GPT-5.6 (Sol, Terra & Luna) Hidden Costs page for the latest data we've sourced.

03 Should I choose monthly or annual billing for GPT-5.6 (Sol, Terra & Luna)?

Annual billing typically saves 15-20% compared to monthly rates. However, monthly billing provides flexibility if you're testing the platform or have fluctuating team sizes. Commit annually only once you've validated the tool fits your needs.

04 How do I know which GPT-5.6 (Sol, Terra & Luna) tier I need?

Start with your must-have features. GPT-5.6 (Sol, Terra & Luna) offers 3 tiers ranging from $1 to $30/per million tokens. Entry tiers work for basic needs, while enterprise tiers add advanced security, customization, and support.

05 Can I negotiate GPT-5.6 (Sol, Terra & Luna) pricing below calculator estimates?

Yes, GPT-5.6 (Sol, Terra & Luna) pricing is negotiable, especially for larger deployments or multi-year commitments. See our negotiation guide for tactics.