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GPT-5.6 Luna

Canonical ID: impossibl/openai/gpt-5.6-luna

Cost-efficient GPT-5.6 model for fast, high-volume workloads

Reasoning: Yes Tool use: Yes

Overview

text image pdf
Provider
Impossibl logo Impossibl
Family
gpt-luna
Release date
2026-07-09
Last updated
2026-07-09
Input modalities
text, image, pdf
Output modalities
text

Pricing and Limits

Token pricing

Input
$0.2/1M
Output
$1.2/1M
Cached input
N/A
Currency: USD

Context and output

Context window
1,050,000
Max output tokens
128,000
Qualified ID
impossibl/openai/gpt-5.6-luna

Model Summary

GPT-5.6 Luna is a model listing in the Impossibl provider catalog. It is categorized under the gpt-luna family.

The model supports text, image, pdf modalities across input/output paths. Reported context capacity is 1,050,000. Pricing is listed at $0.2/1M input and $1.2/1M output.

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