GPT-6 Luna API Pricing
OpenAI · Budget · Proprietary · released 2026-09. Prices in USD per 1 million tokens. Data snapshot: 2026-09-23.
GPT-6 Luna is the 69th cheapest of 144 Budget models on blended price. None of its 3 hosts undercuts the price quoted here. No Arena score is published for it, so it carries no Efficiency score and cannot hold the FinOps Friendly badge.
- Input: $0.10 per 1M tokens
- Output: $0.50 per 1M tokens
- Batch API (input/output): $0.05 / $0.25
- Prompt-cache read: $0.01
- Context window: 1M
GPT-6 Luna market position
On blended price ($0.380 per 1M tokens at 30% input, 70% output) it is cheaper than 52% of Budget models: 69th cheapest of 144, tied with one other. Across every category it is cheaper than 75% of priced text models in the catalogue: 69th cheapest of 277, tied with one other.
- Next cheaper Budget model: Qwen3.8 Flash (Alibaba) at $0.374 blended, 2% less.
- Next more expensive: Qwen3 30B A3B (Alibaba) at $0.386 blended, 2% more.
GPT-6 Luna licence, size and capabilities
GPT-6 Luna is recorded here as proprietary: access is through an API, priced by the token. Its parameter count is not published. Listed capabilities: Text, Vision, Reasoning, Code, Agents. Filling its 1M context window once costs $0.10 in input tokens at list price.
Cost per 1,000 requests by business use case
List price vs after discounts (prompt caching on the cached input share, batch API for async workloads, only where the provider publishes those rates). The monthly budget runs from the after-discounts figure, which assumes you implement both, to the list-price one.
| Use case | Tokens (in/out) | Cost / 1K req (list price) | Cost / 1K req (after discounts) | Monthly @100K req (after discounts – list) |
|---|---|---|---|---|
| Support Ticket | 1,500 / 500 | $0.40 | $0.32 | $32 – $40 |
| Knowledge Q&A | 2,000 / 800 | $0.60 | $0.48 | $48 – $60 |
| Meeting Summary | 10,000 / 1,200 | $1.60 | $0.78 | $78 – $160 |
| Marketing Content | 2,500 / 1,800 | $1.15 | $1.11 | $111 – $115 |
| Coding Task | 3,000 / 2,000 | $1.30 | $1.17 | $117 – $130 |
| Invoice Processing | 1,500 / 600 | $0.45 | $0.21 | $21 – $45 |
| Call Summary | 2,000 / 700 | $0.55 | $0.27 | $27 – $55 |
| Agent Workflow | 6,000 / 3,000 | $2.10 | $1.74 | $174 – $210 |
GPT-6 Luna pricing by host
A host is a company that runs the model and sells it by the token — the lab that made it, a cloud platform like Amazon Bedrock, Azure or Vertex, or an independent provider. One model, several sellers, and often several prices. This model is sold by 3 different hosts. The price quoted above is the one we publish so that models stay comparable; it is not necessarily the cheapest way to buy this model. List prices as published on 2026-09-23 via OpenRouter — negotiated rates, committed-use discounts and provisioned capacity are not shown.
The price we publish is already the cheapest of the 3 hosts: OpenAI at $0.10 input / $0.50 output per 1M tokens. The dearest, Amazon Bedrock, charges 1.1x the cheapest.
| Host | Input $/1M | Output $/1M |
|---|---|---|
| OpenAI (the price shown above) | $0.10 | $0.50 |
| Azure (the price shown above) | $0.10 | $0.50 |
| Amazon Bedrock | $0.11 | $0.55 |
Common questions about GPT-6 Luna pricing
- How much does GPT-6 Luna cost?
- GPT-6 Luna costs $0.10 per million input tokens and $0.50 per million output tokens on the API.
- Does GPT-6 Luna offer batch or cached pricing?
- Yes. Batch API pricing is $0.05/M input and $0.25/M output. Prompt-cache reads cost $0.01/M.
- What would GPT-6 Luna cost per month?
- For a support-ticket workload (1,500 input + 500 output tokens per request) at 100K requests/month, GPT-6 Luna costs about $40 at list prices.
These are list prices: real cost also depends on caching, batching, negotiated discounts, marketplace agreements, and existing contracts. Get a FinOps review from OptimNow or compare all models.
Build the business case for GPT-6 Luna in the AI ROI Calculator: add your business value on top of these costs to get ROI, break-even and payback.
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