Textby OpenAI

GPT-6 Luna

GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic...

  • By price it is in the cheaper half of the 344 text models GenMagic runs (79th cheapest).
  • It scores 27.9 on the Artificial Analysis Intelligence Index, 44th of the 118 text models with a score.
  • It has scores on 26 public benchmarks, listed below with their sources.
  • It was listed on Sep 22, 2026.

Data last changed Nov 7, 2026 · tracked since Oct 29, 2026 · Every model change

Try GPT-6 Luna

Generate with GPT-6 Luna right here. Verify your email to start with free credits.

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Specifications

Context window

1.1M tokens

Max output

128K tokens

Input price

$0.15 / 1M tokens

Output price

$0.75 / 1M tokens

Cached input

$0.015 / 1M tokens

Benchmarks

How GPT-6 Luna scores on public benchmarks. Each card links to the benchmark explainer and to the original source.

27.9

source date 2026-11-06
Source: openrouter
AIMEMathematics

98.9%± 0.7

maxsource date 2026-09-22
Source: epoch
APEX-AgentsAgentic & Tool Use

44.3%

max
Source: epoch
ARC-AGI-1Reasoning & Knowledge

86.7%

max
Source: epoch
ARC-AGI-2Reasoning & Knowledge

59.3%

max
Source: epoch
Chess PuzzlesReasoning & Knowledge

36%± 4.8

maxsource date 2026-10-13
Source: epoch
DTBenchReasoning & Knowledge

90.1%

max
Source: epoch

42.4

max; Reasoning effort: max; Harness: codex
Source: epoch

56.1%± 7.8

maxsource date 2026-09-22
Source: epoch

78.9%± 2.4

maxsource date 2026-09-22
Source: epoch
GPQA DiamondReasoning & Knowledge

87.4%

source date 2026-10-01
Source: openrouter
LMArena (Coding)Instruction & Preference

1432 Elo

maxsource date 2026-11-06
Source: lmarena
LMArena: Creative WritingInstruction & Preference

1357 Elo

maxsource date 2026-11-06
Source: lmarena
LMArena: Hard PromptsInstruction & Preference

1406 Elo

maxsource date 2026-11-06
Source: lmarena

1403 Elo

maxsource date 2026-11-06
Source: lmarena
LMArena: MathMathematics

1429 Elo

maxsource date 2026-11-06
Source: lmarena
LMArena: Multi-TurnInstruction & Preference

1393 Elo

maxsource date 2026-11-06
Source: lmarena
LMArena (Overall)Instruction & Preference

1388 Elo

maxsource date 2026-11-06
Source: lmarena
LMCAReasoning & Knowledge

44.5

max
Source: epoch

26.7

maxsource date 2026-10-21
Source: epoch
Mystery Game PuzzlesReasoning & Knowledge

7%± 2.6

maxsource date 2026-09-22
Source: epoch
ProofBenchMathematics

64%

unknown
Source: epoch
SciCodeCoding

54.6%

max
Source: epoch
SimpleQA VerifiedReasoning & Knowledge

41.4%± 1.6

maxsource date 2026-09-22
Source: epoch
tau-bench (Airline)Agentic & Tool Use

67.3%

source date 2026-10-01
Source: openrouter
WebDev ArenaAgentic & Tool Use

1582 Elo

max
Source: epoch

Compare against every model in the full benchmark matrix.

Capabilities

Reasoning

Works through multi-step problems before answering, for harder tasks.

Vision input

Accepts images alongside text, so you can prompt with pictures and screenshots.

Tool use

Can call functions and tools, enabling agentic and structured workflows.

Structured output

Returns validated JSON that conforms to a schema you define.

Use GPT-6 Luna through the API

The model id is openai/gpt-6-luna. Requests bill your GenMagic balance at the price above, and each response reports what it cost.

curl
curl https://genmagic.co/api/v1/chat/completions \
  -H "Authorization: Bearer $GENMAGIC_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-6-luna",
    "messages": [{ "role": "user", "content": "Explain vector databases in two sentences." }]
  }'
Python (openai SDK)
from openai import OpenAI

client = OpenAI(base_url="https://genmagic.co/api/v1", api_key="YOUR_GENMAGIC_API_KEY")

resp = client.chat.completions.create(
    model="openai/gpt-6-luna",
    messages=[{"role": "user", "content": "Explain vector databases in two sentences."}],
)
print(resp.choices[0].message.content)

From an AI agent, call generate_text with "model": "openai/gpt-6-luna" on the GenMagic MCP server. Keys, limits and every endpoint are in the API documentation.

Use GPT-6 Luna in n8n

  1. In n8n, open the nodes panel, search for GenMagic and install it (a verified community node), then add it to your workflow.
  2. Set Resource to Text and Operation to Generate.
  3. In Model Name or ID, pick OpenAI: GPT-6 Luna, or enter openai/gpt-6-luna as an expression.
  4. Connect your GenMagic API key (get one free). Each run is billed at the price above, and the node returns what it cost.

Ready-to-import workflows that already use the node are on GenMagic for n8n.

Similar-priced text models from other providers

Other text models GenMagic runs at a comparable price, on the same balance and API key.

ModelProviderPriceContext
OpenAI: GPT-6 Luna (this model)OpenAI$0.15 in / $0.75 out per 1M tokens1.1M
Anthropic: Claude Haiku 5.5Anthropic$0.15 in / $0.75 out per 1M tokens1M
Google: Gemma 4 31BGoogle$0.30 in / $0.60 out per 1M tokens262K
DeepSeek: DeepSeek V4.1 FlashDeepSeek$0.076 in / $0.85 out per 1M tokens1M
Qwen: Qwen3.8 Omni FlashQwen$0.23 in / $0.70 out per 1M tokens1M
PrismML: Ternary Bonsai 2 27BPrism Ml$0.11 in / $0.75 out per 1M tokens262K

Compare GPT-6 Luna

More from OpenAI

All 70 OpenAI models

Price and listing history

Every change GenMagic has recorded for GPT-6 Luna since it began tracking the model on Oct 29, 2026. Prices are GenMagic's, the same the studio and the API charge.

DateChangeBeforeAfter
Nov 4, 2026Updated: intelligence index--
Nov 1, 2026Price up 36%$0.11 in / $0.55 out per 1M tokens$0.15 in / $0.75 out per 1M tokens

Where these figures come from

  • Price: GenMagic's own price, what the studio and the API charge, recomputed from the provider's price list every few minutes and recorded daily. How pricing works.
  • Specs and description: as OpenAI publishes them, checked daily.
  • Benchmarks: 26 scores from Artificial Analysis and OpenRouter, Epoch AI, LMArena, re-read daily. Each score above links to its source.
  • Changes: the data on this page last changed on Nov 7, 2026, tracked since Oct 29, 2026. Every model's new listings, price changes and retirements are in the model changes log, and how every figure on GenMagic is sourced is on our sources page.

Generate with GPT-6 Luna today

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