Transparent pricing with no hidden fees. Pay as you go.
gpt-5-6-lunagpt-5-6-lunagpt-5-6-terragpt-5-6-terragpt-5-6-solgpt-5-6-sol| Model | Spec | PoYo price | Official price | You save |
|---|---|---|---|---|
| gpt-5-6-luna | gpt-5-6-luna Input | $0.056/1M tokens 11.2 credits /1M tokens | $0.200/1M tokens Official | 72% |
gpt-5-6-luna Output | $0.336/1M tokens 67.2 credits /1M tokens | $1.20/1M tokens Official | 72% | |
| gpt-5-6-terra | gpt-5-6-terra Input | $0.560/1M tokens 112 credits /1M tokens | $2.00/1M tokens Official | 72% |
gpt-5-6-terra Output | $3.36/1M tokens 672 credits /1M tokens | $12.00/1M tokens Official | 72% | |
| gpt-5-6-sol | gpt-5-6-sol Input | $1.40/1M tokens 280 credits /1M tokens | $5.00/1M tokens Official | 72% |
gpt-5-6-sol Output | $8.40/1M tokens 1680 credits /1M tokens | $30.00/1M tokens Official | 72% |
* Actual fees are based on the final output.
Complete guide to using GPT-5.6 API for Sol, Terra, and Luna
gpt-5-6-luna for high-volume extraction, classification, support automation, and responsive assistants. PoYo pricing starts at $0.056 input and $0.336 output per 1M tokens.gpt-5-6-terra as the balanced default for coding assistance, document analysis, research support, and internal copilots at $0.56 input and $3.36 output per 1M tokens.gpt-5-6-sol for the hardest coding, long-horizon agents, design, cybersecurity, science, and professional knowledge work at $1.40 input and $8.40 output per 1M tokens.The GPT-5.6 family combines stronger work per token with durable capability tiers, so applications can match model intelligence to request value instead of using one price point for every task.
01
GPT-5.6 Sol is the flagship tier for repository-scale engineering, terminal workflows, complex planning, and high-value tasks that need persistence and validation.
02
GPT-5.6 Terra targets the middle of the quality-cost curve. It fits product features that need dependable reasoning without paying Sol rates for every request.
03
GPT-5.6 Luna is the fastest and lowest-cost tier. Use it where throughput and unit economics matter: classification, extraction, content processing, and lightweight automation.
04
PoYo exposes GPT-5.6 through /v1/responses. Send instructions and structured input, enable function calling or web search, and receive standard response items with usage data.
05
GPT-5.6 improves end-to-end work on documents, presentations, spreadsheets, research briefs, and editable artifacts, with better adherence to source material and visual structure.
06
For qualified defensive and research workflows, GPT-5.6 Sol extends into secure code review, patch validation, scientific analysis, experiment debugging, and training-system optimization.
Plan, implement, test, and validate changes across repositories and terminal environments.
Coordinate functions, search, files, and intermediate results through the Responses API.
Generate and refine interfaces, visual explanations, prototypes, and polished artifacts.
Turn mixed source material into structured documents, presentations, spreadsheets, and reports.
Support authorized secure code review, threat modeling, vulnerability triage, and patch validation.
Route hard requests to Sol, everyday work to Terra, and cost-sensitive volume to Luna.
The main GPT-5.6 difference is the balance among capability, speed, and price. Start with Luna for volume, Terra for balanced production, and Sol when task success is worth the flagship tier.
| Feature | GPT-5.6 Luna | GPT-5.6 Terra | GPT-5.6 Sol |
|---|---|---|---|
| Model ID | gpt-5-6-luna | gpt-5-6-terra | gpt-5-6-sol |
| Positioning | Fastest and most affordable | Balanced everyday model | Flagship frontier model |
| PoYo input price | $0.056 / 1M | $0.56 / 1M | $1.40 / 1M |
| PoYo output price | $0.336 / 1M | $3.36 / 1M | $8.40 / 1M |
| Cached input | $0.0056 / 1M | $0.056 / 1M | $0.14 / 1M |
| Best fit | Extraction, classification, batch processing | Coding, analysis, copilots | Complex agents, cyber, science, design |
| PoYo endpoint | /v1/responses | /v1/responses | /v1/responses |
GPT-5.6 was released on July 9, 2026. Capability descriptions follow OpenAI's public release; PoYo prices reflect current pay-as-you-go credits.
1. Create a PoYo API key
Generate a key in the dashboard and add credits. Create API Key
2. Choose a model tier
Use gpt-5-6-luna, gpt-5-6-terra, or gpt-5-6-sol.
3. Call the Responses APIcurl -X POST https://api.poyo.ai/v1/responses -H 'Authorization: Bearer YOUR_API_KEY' -H 'Content-Type: application/json' -d '{"model":"gpt-5-6-terra","input":"Review this migration plan and identify the highest-risk assumptions.","reasoning":{"effort":"medium"},"stream":false}'
Run Luna from $0.056, Terra from $0.56, and Sol from $1.40 per 1M input tokens.
Use stable model IDs to route requests by task value, latency needs, and budget.
Build with streaming, function calling, web search, structured inputs, and reasoning controls.
Test all three models on this page, then monitor token use and credits from the same account.