GPT-5.6 Luna
by OpenAItext+image+file->text5 endpoints
Neura Intelligence Index
77.3/ 100
Rank
#34—
Confidence
mediumBenchmarks
7(18% coverage)
Overview
GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
Capabilities
Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Prompt caching
Modalities
Input
FileImageText
Output
Text
Technical Specifications
Context Window
1.1M tokens
Max Output
128K tokens
Knowledge Cutoff
2026-02-16
Tokenizer
GPT
Content Moderation
Enabled
Uptime (24h)
9957.9%
Country
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools
Benchmark Performance
general
| Benchmark | Score | Source |
|---|---|---|
| MRCR v2 | 41.3 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| SWE-Bench Pro | 62.7 | verified |
math
| Benchmark | Score | Source |
|---|
Performance Over Time
Pricing
Per 1M tokens
Input$1.00
Output$6.00
Cache read$0.10
Cache write$1.25