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AI model rankingsLanguageGPT-6 Luna

GPT-6 Luna

OpenAIMax Released September 2026

Visit OpenAI Full benchmarks
#52 smartest of 89 #3 cheapest Updated Nov 1, 2026, 01:25 AM UTC

At a glance

How GPT-6 Luna compares with the other 88 ranked language models.

  • Middle of the pack. Ranked #52 of 89 on the overall intelligence score, ahead of 42% of models.

  • Fast writer. Writes about 93 words per second, faster than 75% of models.

  • Thinks before answering. You wait about 1.5 min before the answer starts, because it reasons through the problem first.

  • Cheap to use. $0.20 per million tokens, cheaper than 98% of models.

Model details

Made by
OpenAI
Model family
GPT-6 Luna
Version
Max
Released
September 2026 · 6 weeks ago
Input price
$0.10 / 1M tokens
Output price
$0.50 / 1M tokens
Value for money
#5 of 84
Tests with scores
4 of 8

Good for

  • Long documentsKeeps track of facts in very long texts
  • Fast, live repliesWrites about 93 words per second
  • Large volumes on a budgetOnly $0.20 per million tokens

Not ideal for

  • Quick back-and-forth chatAbout 1.5 min wait before each answer

Intelligence

28

overall score

#52 of 89typical 30

Coding

–

coding score

typical –

Speed

123

tokens per second

#23 of 89typical 91

Wait

1.5 min

before it replies

#72 of 79typical 16s

Price

$0.20

per 1M tokens

#3 of 84typical $2.00

Test results

Scores on individual tests that make up the intelligence score. The faint line marks the best score of any model.

  • Humanity's Last Exam

    Very hard expert questions across many subjects

    39%#52 of 86typical 42%
  • SciCode

    Writing code to solve science research problems

    55%#37 of 86typical 53%
  • Long documents

    Finding and reasoning over facts in very long texts

    83%#13 of 87typical 80%
  • Terminal-Bench

    Doing real tasks on a computer by itself, like an agent

    13%#61 of 89typical 31%

Where it ranks on intelligence

This model next to the models closest to it. Click another bar to open that model.

What would it cost?

Through the API, at the listed price. Chat apps usually charge a monthly plan instead.

  • 1,000 chat replies

    a question and a ~350-word answer, 1,000 times

    $0.35
  • Summarise a 100-page report

    about 50,000 words in, a one-page summary out

    $0.007
  • Write a 2,000-word article

    a short brief in, a long article out

    $0.001

Input, per 1M tokens

$0.10

Output, per 1M tokens

$0.50

How long do answers take?

Median times measured through the API.

Before the answer starts1.5 min
Writing speed≈ 93 words / sec
A full 500-word answer1.6 min

Most of the wait is the model thinking before it writes. That makes answers better on hard questions, but slow for quick chats.

Versions of GPT-6 Luna

Higher effort settings think longer: smarter, but slower and pricier.

  • GPT-6 Luna

    OpenAIMax

    28

    intelligence

    $0.20

    per 1M

    123

    tokens/s

  • GPT-6 Luna

    OpenAIXhigh

    23

    intelligence

    $0.20

    per 1M

    114

    tokens/s

  • GPT-6 Luna

    OpenAIHigh

    21

    intelligence

    $0.20

    per 1M

    114

    tokens/s

  • GPT-6 Luna

    OpenAIMedium

    18

    intelligence

    $0.20

    per 1M

    0

    tokens/s

  • GPT-6 Luna

    OpenAILow

    10

    intelligence

    $0.20

    per 1M

    113

    tokens/s

  • GPT-6 Luna

    OpenAINon-reasoning

    9

    intelligence

    $0.20

    per 1M

    109

    tokens/s

Similar models

Other companies' models with the closest intelligence score.

  • GLM-5.3-Flash

    Z AI

    28

    intelligence

    $0.24

    per 1M

    67

    tokens/s

  • Step 5 Preview

    StepFun

    29

    intelligence

    $1.43

    per 1M

    131

    tokens/s

  • MiniMax-M3.1-Flash

    MiniMax

    29

    intelligence

    $0.26

    per 1M

    111

    tokens/s

  • MiMo-V2.6-Flash

    Xiaomi

    27

    intelligence

    $0.17

    per 1M

    42

    tokens/s

  • Ling 3.1 Flash 1019

    InclusionAI

    30

    intelligence

    $0.45

    per 1M

    0

    tokens/s

More from OpenAI

  • GPT-6 Astra

    OpenAIMax

    57

    intelligence

    $20.0

    per 1M

    77

    tokens/s

  • GPT-6.1 Sol

    OpenAIMax

    55

    intelligence

    $4.00

    per 1M

    74

    tokens/s

  • GPT-6.1 Terra

    OpenAIMax

    51

    intelligence

    $2.00

    per 1M

    112

    tokens/s

Questions people ask

Is GPT-6 Luna a good AI model?
On the overall intelligence score it ranks #52 of 89 (score 28; the typical model scores 30). It stands out for long documents, fast, live replies, large volumes on a budget.
How much does GPT-6 Luna cost?
Through the API it costs $0.10 per million input tokens and $0.50 per million output tokens. In everyday terms, 1,000 chat replies cost about $0.35. Chat apps that use it usually charge a monthly plan instead.
How fast is GPT-6 Luna?
It writes about 93 words per second, and you wait about 1.5 min before the answer starts. A full 500-word answer takes roughly 1.6 min.
What's the difference between the GPT-6 Luna versions?
There are 6 settings: Max (score 28), Xhigh (score 23), High (score 21), Medium (score 18), Low (score 10), Non-reasoning (score 9). Higher settings think for longer, which makes answers smarter but slower and more expensive.
What are good alternatives to GPT-6 Luna?
Models with a similar score include GLM-5.3-Flash by Z AI, Step 5 Preview by StepFun, MiniMax-M3.1-Flash by MiniMax. The cheapest of these is MiMo-V2.6-Flash at $0.17 per million tokens.

Benchmark data from Artificial Analysis, an independent benchmarking company. Rankings refresh every few hours.