- Home
- LLM comparison
- Claude Sonnet 4.6 vs. GPT-6 Luna
AnthropicOpenAILLM matchup
Claude Sonnet 4.6vs.GPT-6 Luna
Which one is better?
GPT-6 Luna performs better than Claude Sonnet 4.6 and is cheaper: Claude Sonnet 4.6 costs 30 times as much.
Claude Sonnet 4.6
Rank 44
GPT-6 Luna
Rank 35
Claude Sonnet 4.6
GPT-6 Luna
Claude Sonnet 4.6
GPT-6 Luna
Claude Sonnet 4.6
Rank 67 of 785
GPT-6 Luna
Rank 30 of 785
Above 272,000 tokens of context, GPT-6 Luna costs more: $0.20 input and $0.75 output per 1M tokens.
Choose Claude Sonnet 4.6 for
No clear advantage
Choose GPT-6 Luna for
On this page
Where is the difference?
Strengths at a glance
Sonnet 4.6GPT-6 LunaMedian of all ranked models
95 % range: Sonnet 4.6 80.1 to 93.7, GPT-6 Luna 94.5 to 100.5.
The same values and verdicts as the bars below. In the close-up the net starts at 70 points, just below the weaker model's lowest value; the reference group average is 100. Not in the net because a model has no own value there or the data are too thin: Mathematics, Knowledge.
GPT-6 Luna is ahead in 5 of 10 areas, Sonnet 4.6 in none.
level: 1too little data: 2GPT-6 Luna slightly ahead: 2GPT-6 Luna ahead: 5
Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.
Show 4 more areas that do not count toward the overall index
Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.
Claude Sonnet 4.6 vs. GPT-6 Luna at the same effort
Both models measured at the same reasoning efforts. This shows whether a lead comes from the model or only from more compute.
| Effort | Sonnet 4.6 | GPT-6 Luna | Gap | Verdict | Test series |
|---|---|---|---|---|---|
| max | 86.4 | 96.3 | 19.6 | GPT-6 Luna ahead | 3 |
| Overall index (max vs. max) | 86.4 | 96.3 | 9.9 | GPT-6 Luna ahead |
Gap and verdict compare only the Artificial Analysis test series in which both models are measured at that effort. Tied below 3 points, ahead only beyond two standard errors. The single values rest on all test series of each model, so their difference can deviate from the gap.
Which model for which task?
Everyday tasks, translated from the area values above. Each row names the values it rests on.
See for yourself: same task, one attempt
The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.
Claude Sonnet 4.6
The response reached the token limit. No complete recording is available.
Oct 6, 2026 · 106 s · $0.12
Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.
Test details
- Run date
- Oct 6, 2026
- API provider
- openrouter
- Requested API model
- anthropic/claude-sonnet-4.6
- Reasoning setting
- high
- Token limit including reasoning
- 8,192 tokens
- Output tokens
- 8,192 tokens
- Cost of the attempt
- $0.1229
- Response time
- 106 s
- API model reported in response
- anthropic/claude-sonnet-4.6
- Pinned endpoint
- Anthropic | anthropic/claude-4.6-sonnet-20260217
- Temperature
- Provider default
- Test protocol
- community-visual-tests-v1
- Technical checks
- Failed
Earlier attempts (2)
- Oct 2, 2026API request failedReasoning setting: high
- Oct 1, 2026API request failedReasoning setting: high
GPT-6 Luna

Oct 1, 2026 · 47 s · $0.0022
Test details
- Run date
- Oct 1, 2026
- API provider
- openrouter
- Requested API model
- openai/gpt-6-luna
- Reasoning setting
- high
- Token limit including reasoning
- 8,192 tokens
- Output tokens
- 4,493 tokens
- Cost of the attempt
- $0.0022
- Response time
- 46.7 s
- API model reported in response
- openai/gpt-6-luna
- Pinned endpoint
- OpenAI | openai/gpt-6-luna-20260922
- Temperature
- Provider default
- Test protocol
- community-visual-tests-v1
- Technical checks
- Passed, not a quality rating
Visually reviewed. This individual test does not establish overall model quality.
SVG short test
SVG short test
One SVG task with the same fixed settings for every model, without hidden thinking.
Prompt
Return only one standalone SVG of a pelican riding a bicycle. Use viewBox="0 0 800 600", simple shapes, two clearly visible wheels and a recognizable pelican with a long beak. At most 30 SVG elements and 1800 characters. No Markdown, explanations, comments, scripts, animation, CSS or external resources.
Claude Sonnet 4.6

Oct 14, 2026 · $0.0113
Test details
- Test run
- Oct 14, 2026
- Provider
- anthropic
- API model
- anthropic/claude-sonnet-4.6
- Output
- 738 tokens
- Reasoning
- API reports 0 reasoning tokens
- Cost of the attempt
- $0.0113
- Test round
- 43b8c5c46830
GPT-6 Luna
Unavailable in this round
Claude Sonnet 4.6 and GPT-6 Luna in the overall index
Every model with a place in the overall index, both models of this matchup highlighted. You can add or hide other models.
Overall index (Gradually Meta-Score v4)
20 of 92 models
4 models in this view are measured at a lower reasoning effort than max in the overall index. Dashed column: lower reasoning effort than the top.
Popularity compared
How often the models are searched for, used and mentioned, on a scale from 0 to 100.
GPT-6 Luna is more popular than Claude Sonnet 4.6: 60 to 54 out of 100.
Over time
Weekly values from October 18, 2026 to November 7, 2026
Claude Sonnet 4.6GPT-6 Luna
All data side by side
The better value is bold. For the overall index only when the gap is clear.
| Metric | Claude Sonnet 4.6 | GPT-6 Luna |
|---|---|---|
| Intelligence | ||
| Overall indexpoints, 100 = reference group average, higher is better | 86.4 | 96.3 |
| Rank | Rank 44 of 92 | Rank 35 of 92 |
| Price per 1M tokens | ||
| Inputwhat you send | $3 | $0.10above 272,000 tokens: $0.20 |
| Outputwhat the model writes | $15 | $0.50above 272,000 tokens: $0.75 |
| Speed | ||
| Tokens per second | 60 | 101 |
| Popularity | ||
| Popularitysearch, usage and mentions, 0 to 100 | 54Rank 67 of 785 | 60Rank 30 of 785 |
| Technical | ||
| Context windowhow much text the model reads at once | 1 M tokens≈ 1,500 A4 pages | 1.05 M tokens≈ 1,580 A4 pages |
| Knowledge cutoff | August 2025 | May 18, 2026 |
| Released | February 2026 | Sep 22, 2026 |
| Availability | Active | Active |
| Open weights | no | no |
Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis
Is there a better choice?
Overall index 92.1, rank 40$2 input and $10 output per 1M tokens
GPT-6 Luna vs. Claude Sonnet 5Overall index 103.4, rank 20$0.10 input and $0.50 output per 1M tokens
GPT-6 Luna vs. Claude Haiku 5.5Overall index 126.1, rank 1$4 input and $20 output per 1M tokens
GPT-6 Luna vs. Claude Opus 5.5Shared benchmarks
Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.
A: Claude Sonnet 4.6B: GPT-6 Luna
Show 54 more benchmarks
More comparisons
Compare Claude Sonnet 4.6 and GPT-6 Luna with the models people compare them with most often.
Compare another matchup
Predecessor and successor
The most popular comparisons
- 1GPT-6 Luna vs. GPT-5.6 Terra
- 2Claude Haiku 5.5 vs. GPT-6 Luna
- 3GPT-6 Luna vs. Gemini 3.8 Flash
- 4GPT-6 Luna vs. DeepSeek-V4.1-Flash
- 5GPT-6 Luna vs. GPT-5.4 mini
- 6Claude Sonnet 4.6 vs. Gemini 3.8 Flash
- 7GPT-6 Astra vs. GPT-6 Luna
- 8GPT-6 Luna vs. GLM-5.3-Flash
- 9Claude Opus 5.5 vs. Claude Sonnet 4.6
Show all 65 comparisons
- 10GPT-6.1 Sol vs. GPT-6 Luna
- 11GPT-6 Luna vs. DeepSeek-V4-Pro
- 12Claude Sonnet 5 vs. GPT-6 Luna
- 13GPT-6 Luna vs. Gemini 3.5 Flash-Lite
- 14Claude Haiku 4.5 vs. GPT-6 Luna
- 15GPT-6 Luna vs. GPT-5.4
- 16GPT-6 Luna vs. Gemini 3.1 Pro Preview
- 17Claude Sonnet 4.6 vs. DeepSeek-V4.1-Flash
- 18Claude Sonnet 5.5 vs. GPT-6 Luna
- 19GPT-6 Luna vs. DeepSeek V4.1 Flash 1017
- 20Claude Sonnet 4.6 vs. GLM-5.3-Flash
- 21Claude Opus 4.8 vs. GPT-6 Luna
- 22Claude Sonnet 5.5 vs. Claude Sonnet 4.6
- 23GPT-6 Luna vs. GPT-5.6 Sol
- 24GPT-6 Luna vs. Grok 4.7
- 25GPT-6 Luna vs. Gemini 3.6 Flash
- 26GPT-6 Sol vs. GPT-6 Luna
- 27Claude Opus 4.6 vs. GPT-6 Luna
- 28Claude Sonnet 4.5 vs. GPT-6 Luna
- 29GPT-6 Luna vs. Muse Spark 1.3
- 30GPT-6 Luna vs. DeepSeek-V4-Flash
- 31Claude Sonnet 4.6 vs. Qwen 3.8 27B
- 32Claude Sonnet 4.6 vs. GPT-6.1 Sol
- 33Claude Opus 5.5 vs. GPT-6 Luna
- 34Claude Sonnet 4.6 vs. GPT-6 Sol
- 35GPT-6 Luna vs. Qwen 3.8 27B
- 36GPT-6 Luna vs. Qwen 3.8 Max 0902
- 37Claude Haiku 5.5 vs. Claude Sonnet 4.6
- 38GPT-6 Luna vs. GLM-5.2
- 39Claude Sonnet 4.6 vs. Grok 4.7
- 40Claude Sonnet 4.6 vs. GPT-6 Astra
- 41GPT-6 Luna vs. GPT-5.5
- 42GPT-6 Luna vs. Gemini 3.7 Flash
- 43Claude Sonnet 4.6 vs. DeepSeek V4.1 Flash 1017
- 44Claude Fable 5.1 vs. GPT-6 Luna
- 45GPT-6 Luna vs. GLM-5.3
- 46GPT-6 Luna vs. Grok 4.6
- 47Claude Sonnet 4.6 vs. GLM-5.3
- 48Claude Opus 4.5 vs. GPT-6 Luna
- 49Claude Sonnet 4.6 vs. GPT-5.6 Terra
- 50GPT-6 Luna vs. MiMo-V2.5
- 51Claude Fable 5 vs. GPT-6 Luna
- 52GPT-6 Luna vs. Mistral Large 4
- 53GPT-6 Luna vs. Gemini 3.5 Flash
- 54GPT-6.1 Terra vs. GPT-6 Luna
- 55Claude Opus 4.6 vs. Claude Sonnet 4.6
- 56GPT-6 Luna vs. Mistral Medium 3.5
- 57GPT-6 Luna vs. Grok 4.5
- 58Claude Opus 4.7 vs. Claude Sonnet 4.6
- 59Claude Opus 4.7 vs. GPT-6 Luna
- 60Claude Sonnet 4.6 vs. Claude Haiku 4.5
- 61Claude Opus 4.5 vs. Claude Sonnet 4.6
- 62GPT-6 Luna vs. Gemini 4 Argon
- 63Claude Sonnet 4.6 vs. Gemini 4 Argon
- 64Claude Sonnet 4.6 vs. Gemini 4 Carbon
- 65Claude Sonnet 4.6 vs. GPT-6.1 Terra