GPT-5.6 Luna
Fresh input / cached input / output cost breakdown, active and scheduled rates, provenance, same-model deployment markup, and cost-comparable alternatives for this purchasable lane.
Illustrative workloads
Pick a useful starting shape, then fine-tune every input below.
Workload and pricing scenario
Adjust the token shape, cache behavior, time window, and service tier. Every number below updates immediately.
Workload cost calculator
Share of input tokens served from cache. Applied only to models with a cache meter.
Rows with a rate that changes by time of day, promo window or service tier are priced for this scenario instead of their flat listed rate; a brand-colored label under the model name names which one applies. Context size for band-priced rows uses the input-token count below.
Picking a specific hour also previews time-of-day rates that are scheduled but have not started billing yet; those rows are labelled · preview with their start instant. Now only ever shows rates that are billable at this moment.
What this lane charges right now
Priced under the workload and scenario above. The full published schedule below always shows every variant regardless of which scenario is selected.
Where this workload's cost goes
60M input tokens (90% cache hit) and 210K output tokens, at the resolved rate above.
$1.20 + $1.08 + $0.252 = $2.53
How much to trust these numbers
Fast / cheap, high-volume. GA 2026-07-09. Cut 80% from $1.00/$0.10/$6.00 — Foundry matched OpenAI's 2026-07-30 direct-API cut with a meter tranche effective 2026-08-01, restoring 1:1 parity. Now the cheapest tracked lane on Foundry. Cache write bills at $0.25/M (1.25x input).
Azure Retail Prices API 'Foundry Models', full paged sweep captured 2026-08-20: '5.6 luna ShortCo Inp Std Gl 1M Tokens' $0.20/M, 'Cd Inp Std Gl' $0.02/M, 'Cd Wr Std Gl' $0.25/M, 'Opt Std Gl' $1.20/M — all effective 2026-08-01, and the superseded 2026-07-01 tranche ($1.00/$0.10/$6.00) no longer appears for any luna meter. Matches OpenAI's direct rate exactly (developers.openai.com/api/docs/pricing, read via raw DOM the same day). Data Zone meters moved with it, to $0.22/$0.022/$1.32 across 13 US/EU regions.
Same-model deployment markup
How much this Foundry lane costs over the same model's Direct API rate.
Not available — no Direct API listing exists for this exact model in the catalog.
Other lanes within ±25% of this workload's cost
Same provider first, then ranked by cost proximity, for 60M in / 210K out. This is a cost ranking only — never a quality recommendation.
- DeepSeek-V4 FlashDeepSeek · Fireworks-hostedFoundry ·Data Zone$2.59CHF 2.08+$0.053 (+2%) vs this lane
- DeepSeek-V4 FlashDeepSeekFoundry ·Global$2.76CHF 2.22+$0.227 (+9%) vs this lane
- DeepSeek-V4 FlashDeepSeekFoundry ·Data Zone$3.05CHF 2.46+$0.52 (+21%) vs this lane
- Qwen3.6 FlashQwen · Model Studio (Intl)Direct API$3.17CHF 2.55+$0.633 (+25%) vs this lane