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GPT-5.6 Luna

openai/gpt-5.6-luna

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

Source-linkedgpt-nanoClosed weightsReleased 2026-07-09
Report data
Context window1.05M
Maximum output128K
Provider offers9
Knowledge cutoff2026-02-16
Capabilities

What this model supports

ReasoningYes
Tool callingYes
Structured outputYes
AttachmentsYes
Temperature controlNo
Open weightsNo
Creator
OpenAI
Family
gpt-nano
Modalities
Image, Pdf, Text
License
Not documented
Release date
2026-07-09
Model ID
openai/gpt-5.6-luna
Market availability

Provider pricing

Report price →
Providers offering GPT-5.6 Luna
ProviderProvider model IDContextInput / 1MOutput / 1MCached / 1MFeaturesAll pricing
routing.rungpt-5.6-luna1M$0.700$4.200R T S
View
{
  "input": 0.7,
  "output": 4.2
}
OpenAIgpt-5.6-luna1.05M$1.000$6.000$0.100R T S
View
{
  "cache_read": 0.1,
  "cache_write": 1.25,
  "context_over_200k": {
    "cache_read": 0.2,
    "cache_write": 2.5,
    "input": 2,
    "output": 9
  },
  "input": 1,
  "output": 6,
  "tiers": [
    {
      "cache_read": 0.2,
      "cache_write": 2.5,
      "input": 2,
      "output": 9,
      "tier": {
        "size": 272000,
        "type": "context"
      }
    }
  ]
}
LLM Gatewaygpt-5.6-luna1.05M$1.000$6.000$0.100R T S
View
{
  "cache_read": 0.1,
  "cache_write": 1.25,
  "input": 1,
  "output": 6
}
OpenCode Zengpt-5.6-luna1.05M$1.000$6.000$0.100R T S
View
{
  "cache_read": 0.1,
  "cache_write": 1.25,
  "context_over_200k": {
    "cache_read": 0.2,
    "cache_write": 2.5,
    "input": 2,
    "output": 9
  },
  "input": 1,
  "output": 6,
  "tiers": [
    {
      "cache_read": 0.2,
      "cache_write": 2.5,
      "input": 2,
      "output": 9,
      "tier": {
        "size": 272000,
        "type": "context"
      }
    }
  ]
}
GitHub Copilotgpt-5.6-luna1.05M$1.000$6.000$0.100R T S
View
{
  "cache_read": 0.1,
  "context_over_200k": {
    "cache_read": 0.2,
    "input": 2,
    "output": 9
  },
  "input": 1,
  "output": 6,
  "tiers": [
    {
      "cache_read": 0.2,
      "input": 2,
      "output": 9,
      "tier": {
        "size": 200000,
        "type": "context"
      }
    }
  ]
}
Abacusgpt-5.6-luna1M$1.000$6.000$0.100R T S
View
{
  "cache_read": 0.1,
  "input": 1,
  "output": 6
}
OpenRouteropenai/gpt-5.6-luna1.05M$1.000$6.000$0.100R T S
View
{
  "cache_read": 0.1,
  "cache_write": 1.25,
  "input": 1,
  "output": 6
}
Vercel AI Gatewayopenai/gpt-5.6-luna1.05M$1.000$6.000$0.100R T S
View
{
  "cache_read": 0.1,
  "cache_write": 1.25,
  "input": 1,
  "output": 6
}
Venice AIopenai-gpt-56-luna1M$1.250$7.500$0.125R T S
View
{
  "cache_read": 0.125,
  "cache_write": 1.5625,
  "input": 1.25,
  "output": 7.5
}
Evidence

Published benchmark results

Agentic Index vs top 7 models
GPT-5.6 Sol
54.0
Claude Fable 5
52.8
GPT-5.6 Terra
47.4
Anthropic: Claude Opus 4.8
47.2
Claude Sonnet 5
46.7
xAI: Grok 4.5
45.7
GPT-5.6 Luna
45.6
Agents' Last Exam vs top 3 models
GPT-5.6 Sol
52.7
GPT-5.6 Terra
50.4
GPT-5.6 Luna
50.3
Artificial Analysis Coding Agent Index vs top 1 models
GPT-5.6 Luna
74.6
Artificial Analysis Intelligence Index vs top 5 models
GPT-5.6 Sol
58.9
GPT-5.6 Terra
55.0
Grok 4.3
53.0
GPT-5.6 Luna
51.2
North Mini Code
27.6
BrowseComp vs top 8 models
GPT-5.6 Sol
90.4
GPT-5.5 Pro
90.1
GPT-5.4 Pro
89.3
GPT-5.6 Terra
87.5
Claude Sonnet 5
84.7
GPT-5.5
84.4
MiniMax-M3
83.5
GPT-5.6 Luna
83.3
Coding Index vs top 8 models
GPT-5.6 Sol
77.4
GPT-5.6 Terra
76.7
Claude Fable 5
76.5
GPT-5.5
74.9
Anthropic: Claude Opus 4.8
74.3
Anthropic: Claude Opus 4.7
73.6
xAI: Grok 4.5
72.4
GPT-5.6 Luna
71.4
DeepSWE vs top 5 models
GPT-5.6 Sol
72.7
GPT-5.6 Terra
69.6
GPT-5.6 Luna
67.2
Grok 4.5
62.0
Muse Spark 1.1
53.3
FrontierMath vs top 7 models
GPT-5.6 Sol
89.0
GPT-5.6 Terra
84.9
GPT-5.6 Luna
78.6
GPT-5.5 Pro
39.6
GPT-5.4 Pro
38.0
GPT-5.5
35.4
GPT-5.4
27.1
GPQA Diamond vs top 8 models
Fugu Ultra
95.5
Fugu
95.5
GPT-5.6 Sol
94.6
GPT-5.4 Pro
94.4
Gemini 3.1 Pro Preview
94.3
Claude Opus 4.7
94.2
GPT-5.5
93.6
GPT-5.6 Luna
92.3
Intelligence Index vs top 8 models
Claude Fable 5
59.9
GPT-5.6 Sol
58.9
Anthropic: Claude Opus 4.8
55.7
GPT-5.6 Terra
55.0
GPT-5.5
54.8
xAI: Grok 4.5
53.8
Anthropic: Claude Opus 4.7
53.5
GPT-5.6 Luna
51.2
MMMU Pro vs top 7 models
Gemini 3.5 Flash
83.6
GPT-5.6 Sol
83.0
GPT-5.5
81.2
GPT-5.4
81.2
GPT-5.6 Terra
80.7
Gemini 3.1 Pro Preview
80.5
GPT-5.6 Luna
78.4
OSWorld vs top 3 models
GPT-5.6 Sol
62.6
GPT-5.6 Terra
50.2
GPT-5.6 Luna
45.6
SWE-Bench Pro vs top 8 models
Claude Fable 5
80.3
Claude Opus 4.8
69.2
Grok 4.5
64.7
GPT-5.6 Sol
64.6
Claude Opus 4.7
64.3
GPT-5.6 Terra
63.4
Claude Sonnet 5
63.2
GPT-5.6 Luna
62.7
Terminal-Bench vs top 7 models
GPT-5.6 Sol
88.8
Claude Fable 5
88.0
GPT-5.6 Terra
87.4
GPT-5.6 Luna
84.7
Grok 4.5
83.3
GPT-5.5
82.7
Muse Spark 1.1
80.0
Toolathlon vs top 6 models
GPT-5.6 Sol
58.0
Gemini 3.5 Flash
56.5
GPT-5.5
55.6
GPT-5.6 Luna
53.4
GPT-5.6 Terra
53.1
Step 3.7 Flash
49.5