API Key
🔓
Save
❔
Playground
POST
https://api.openai.com/v1/chat/completions
https://api.openai.com/v1/responses
🔗
developer
Cache breakpoint
Response Format
❓
Helper
JSON object mode (no schema sent)
Structured outputs.
JSON object
requires developer description instead.
⮜
⮜
⮜
Save ➤
Select preset...
Load
Del
Keep Messages
↻
🔗
4
𝙼
🔆
⮞
⮞
⮞
Models
↻
Filter
gpt-5.6-sol
gpt-5.6-terra
gpt-5.6-luna
gpt-5.5-2026-04-23
chat-latest (gpt-5.x instant)
gpt-5.4-2026-03-05
gpt-5.4-mini-2026-03-17
gpt-5.4-nano-2026-03-17
gpt-5.2-2025-12-11
gpt-5.1-2025-11-13
gpt-5-2025-08-07 (shutdown: 2026-12-11)
gpt-5-mini-2025-08-07 (shutdown: 2026-12-11)
gpt-5-nano-2025-08-07 (shutdown: 2026-12-11)
o3-2025-04-16 (shutdown: 2026-12-11)
o4-mini-2025-04-16 (shutdown: 2026-10-23)
o3-mini-2025-01-31 (shutdown: 2026-10-23)
o1-2024-12-17 (shutdown: 2026-10-23)
gpt-4.1-2025-04-14
gpt-4.1-mini-2025-04-14
gpt-4o-2024-11-20
gpt-4o-2024-08-06
gpt-4o-mini-2024-07-18
gpt-4o-2024-05-13 (shutdown: 2026-10-23)
gpt-4-turbo-2024-04-09 (shutdown: 2026-10-23)
gpt-4-0613 (shutdown: 2026-10-23)
gpt-3.5-turbo-0125 (shutdown: 2026-10-23)
gpt-3.5-turbo-1106 (shutdown: 2026-09-28)
gpt-5.5-pro-2026-04-23 (Responses)
gpt-5.4-pro-2026-03-05 (Responses)
gpt-5.2-pro-2025-12-11 (Responses)
gpt-5.3-codex (Responses)
Reasoning model
max_completion_tokens
Output budget
Reasoning controls
Null
to omit parameter.
Reasoning Effort
Verbosity
Explicit prompt cache only
(
prompt_cache_options
- explicit mode)
Sampling controls
Temperature
Top P
Frequency Penalty
Presence Penalty
Logit Bias
Token IDs (0–200 000) → (−100 to +100)
Prompt Cache Key
Service Tier: Priority
🗑 Clear ALL Local Data
Compose response_format (json_schema)
name
description (optional)
strict
True: CFG enforced schema
schema (JSON Schema draft-compatible object)
Validate
Cancel
Accept
Title
Message
Cancel
OK
HTTP Request Details
↔
✖
Usage
Request
Response
Headers