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OpenAI

GPT-5.6 Luna

Modalities
openai/gpt-5.6-luna
Released: Jun 1, 2026
OpenAI's fastest and most affordable GPT-5.6 tier with 1.05M context window. Optimized for cost-sensitive, high-volume workloads with function calling, vision, and prompt caching.
Context
1.05M tokens
Input / 1M
from $0.044
Output / 1M
from $0.2643
Cache read / 1M
from $0.02
Cache write / 1M
from $0.25
Best offer: $1.1997 → $0.2643 per 1M output tokens-78%

Pricing

USD · per 1M tokens
0 – 272K
Input
$0.044
Output
$0.2643
Cache read
$0.02
Cache write
$0.25
272K – 1.05M
Input
$0.40
Output
$1.80
Cache read
$0.04
Cache write
$0.50
Context range
Input / 1M
Output / 1M
Cache read / 1M
Cache write / 1M
0 – 272K$0.044$0.2643$0.02$0.25
272K – 1.05M$0.40$1.80$0.04$0.50

Offers

1 seller
Surplus Intelligence
Price
Infrom $0.044Outfrom $0.2643
Discount
-78%
Latency
—
Seller
Price
Discount
Latency
Surplus Intelligence
Infrom $0.044Outfrom $0.2643
-78%—

Usage · 30D

No usage yet

Get started

curl https://super.hyperflow.fun/v1/chat/completions \
  -H "Authorization: Bearer $HYPERFLOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.6-luna",
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'