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- GPT-6.1 Sol vs. GPT-6 Luna
OpenAILLM matchup
GPT-6.1 Solvs.GPT-6 Luna
Is the higher price worth it?
GPT-6.1 Sol performs better than GPT-6 Luna, but costs 20 times as much.
GPT-6.1 Sol
Rank 9
GPT-6 Luna
Rank 40
GPT-6.1 Sol
GPT-6 Luna
GPT-6.1 Sol
GPT-6 Luna
GPT-6.1 Sol
GPT-6 Luna
Rank 9 of 485
Above 272,000 tokens of context, GPT-6.1 Sol costs more: $4 input and $15 output per 1M tokens. Above 272,000 tokens of context, GPT-6 Luna costs more: $0.20 input and $0.75 output per 1M tokens.
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Where is the difference?
Strengths at a glance
GPT-6.1 SolGPT-6 LunaMedian of all ranked models
95 % range: GPT-6.1 Sol 113.7 to 127.5, GPT-6 Luna 94.8 to 100.7.
The same values and verdicts as the bars below. In the close-up the net starts at 80 points, just below the weaker model's lowest value; the reference group average is 100.
GPT-6.1 Sol is ahead in 10 of 10 areas, GPT-6 Luna in none.
GPT-6.1 Sol ahead: 10
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.
GPT-6.1 Sol 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.
The gap compares 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.
Which model for which task?
Everyday tasks, translated from the area values above. Each row names the values it rests on.
GPT-6.1 Sol vs. GPT-6 Luna in our own test
The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.
GPT-6.1 Sol

Oct 1, 2026 · 84 s · $0.04
Test details
- Run date
- Oct 1, 2026
- API provider
- openrouter
- Requested API model
- openai/gpt-6.1-sol
- Reasoning setting
- high
- Token limit including reasoning
- 8,192 tokens
- Output tokens
- 3,583 tokens
- Cost of the attempt
- $0.0359
- Response time
- 83.6 s
- API model reported in response
- openai/gpt-6.1-sol
- Pinned endpoint
- OpenAI | openai/gpt-6.1-sol-20260929
- 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.
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.
GPT-6.1 Sol
Unavailable in this round
GPT-6 Luna
Unavailable in this round
GPT-6.1 Sol 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 v5)
20 of 95 models
Popularity compared
How often the models are searched for, used and mentioned, on a scale from 0 to 100.
GPT-6.1 Sol has no popularity score yet.
Over time
Weekly values from October 18, 2026 to November 14, 2026
GPT-6.1 SolGPT-6 Luna
All data side by side
The better value is bold. For the overall index only when the gap is clear.
| Metric | GPT-6.1 Sol | GPT-6 Luna |
|---|---|---|
| Intelligence | ||
| Overall indexpoints, 100 = reference group average, higher is better | 117.5 | 95.6 |
| Rank | Rank 9 of 95 | Rank 40 of 95 |
| Price per 1M tokens | ||
| Inputwhat you send | $2above 272,000 tokens: $4 | $0.10above 272,000 tokens: $0.20 |
| Outputwhat the model writes | $10above 272,000 tokens: $15 | $0.50above 272,000 tokens: $0.75 |
| Cost per task (own tests)average of 3 original-protocol tasks both models passed (SVG short test not included) | $0.044 | $0.003 |
| Speed | ||
| Tokens per second | 54 | 83 |
| Popularity | ||
| Popularitysearch, usage and mentions, 0 to 100 | n/a | 85Rank 9 of 485 |
| Technical | ||
| Context windowhow much text the model reads at once | 1.05 M tokens≈ 1,580 A4 pages | 1.05 M tokens≈ 1,580 A4 pages |
| Knowledge cutoff | Apr 30, 2026 | May 18, 2026 |
| Released | Sep 29, 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 110.5, rank 14$0.10 input and $0.50 output per 1M tokens
View profileOverall index 130.9, rank 1$8 input and $40 output per 1M tokens
GPT-6.1 Sol vs. Claude Fable 5.2Shared 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: GPT-6.1 SolB: GPT-6 Luna
Show 54 more benchmarks
More comparisons
Compare GPT-6.1 Sol 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
- 2GPT-6 Luna vs. Gemini 3.8 Flash
- 3GPT-6 Luna vs. DeepSeek-V4.1-Flash
- 4GPT-6 Luna vs. GLM-5.3-Flash
- 5GPT-6 Luna vs. GPT-5.4 mini
- 6GPT-6 Luna vs. DeepSeek V4.1 Flash 1017
- 7GPT-6 Astra vs. GPT-6 Luna
- 8Claude Haiku 5.5 vs. GPT-6 Luna
- 9GPT-6.1 Sol vs. GPT-5.6 Sol
Show all 87 comparisons
- 10Claude Sonnet 5 vs. GPT-6 Luna
- 11GPT-6 Luna vs. Gemini 3.5 Flash-Lite
- 12Claude Sonnet 5.5 vs. GPT-6 Luna
- 13GPT-6 Luna vs. DeepSeek-V4-Pro
- 14GPT-6 Luna vs. Grok 4.7
- 15Claude Sonnet 4.6 vs. GPT-6 Luna
- 16GPT-6 Luna vs. DeepSeek-V4-Flash
- 17GPT-6 Luna vs. Qwen 3.8 27B
- 18GPT-6 Luna vs. GPT-5.6 Sol
- 19GPT-6.1 Sol vs. GPT-6.1 Terra
- 20GPT-6 Luna vs. GPT-5.4
- 21Claude Haiku 4.5 vs. GPT-6 Luna
- 22GPT-6 Luna vs. Gemini 3.1 Pro Preview
- 23GPT-6 Luna vs. GLM-5.2
- 24Claude Opus 4.8 vs. GPT-6 Luna
- 25Claude Opus 5.5 vs. GPT-6 Luna
- 26Claude Opus 4.6 vs. GPT-6 Luna
- 27Claude Sonnet 4.5 vs. GPT-6 Luna
- 28GPT-6 Luna vs. GLM-5.3
- 29GPT-6 Luna vs. Muse Spark 1.3
- 30GPT-6 Luna vs. Qwen 3.8 Max 0902
- 31GPT-6 Luna vs. Gemini 3.6 Flash
- 32GPT-6.1 Sol vs. GPT-6 Astra
- 33GPT-6 Sol vs. GPT-6 Luna
- 34GPT-6.1 Sol vs. GPT-5.6 Terra
- 35GPT-6 Luna vs. MiMo-V2.5
- 36GPT-6 Luna vs. Gemini 3.7 Flash
- 37GPT-6 Luna vs. Grok 4.6
- 38GPT-6.1 Sol vs. Gemini 3.8 Flash
- 39GPT-6 Luna vs. GPT-5.5
- 40Claude Opus 4.5 vs. GPT-6 Luna
- 41Claude Fable 5.1 vs. GPT-6 Luna
- 42Claude Fable 5 vs. GPT-6 Luna
- 43GPT-6 Luna vs. Gemini 3.5 Flash
- 44GPT-6 Luna vs. Mistral Medium 3.5
- 45Claude Opus 5.5 vs. GPT-6.1 Sol
- 46Claude Sonnet 5.5 vs. GPT-6.1 Sol
- 47GPT-6 Luna vs. Mistral Large 4
- 48GPT-6 Luna vs. Grok 4.5
- 49GPT-6.1 Terra vs. GPT-6 Luna
- 50GPT-6.1 Sol vs. GLM-5.3-Flash
- 51Claude Opus 4.7 vs. GPT-6 Luna
- 52GPT-6.1 Sol vs. Gemini 4 Carbon
- 53GPT-6.1 Sol vs. DeepSeek-V4.1-Flash
- 54Claude Opus 4.8 vs. GPT-6.1 Sol
- 55GPT-6.1 Sol vs. Gemini 4 Argon
- 56GPT-6.1 Sol vs. Kimi K3.1 Pro
- 57GPT-6.1 Sol vs. DeepSeek-V4-Flash
- 58GPT-6 Luna vs. Gemini 4 Argon
- 59GPT-6.1 Sol vs. GPT-5.4 mini
- 60GPT-6.1 Sol vs. GPT-5.4
- 61GPT-6.1 Sol vs. DeepSeek V4.1 Flash 1017
- 62GPT-6.1 Sol vs. Qwen 3.8 Max 0902
- 63Claude Sonnet 4.6 vs. GPT-6.1 Sol
- 64Claude Opus 4.6 vs. GPT-6.1 Sol
- 65GPT-6.1 Sol vs. GPT-5.6 Luna
- 66Claude Sonnet 5 vs. GPT-6.1 Sol
- 67Claude Opus 5 vs. GPT-6.1 Sol
- 68GPT-6.1 Sol vs. GPT-5.5
- 69Claude Haiku 5.5 vs. GPT-6.1 Sol
- 70GPT-6.1 Sol vs. Grok 4.7
- 71Claude Sonnet 4.5 vs. GPT-6.1 Sol
- 72GPT-6.1 Sol vs. Gemini 3.5 Flash
- 73Claude Opus 4.7 vs. GPT-6.1 Sol
- 74GPT-6.1 Sol vs. GLM-5.3
- 75Claude Fable 5.2 vs. GPT-6.1 Sol
- 76GPT-6.1 Sol vs. Gemini 3.7 Flash
- 77GPT-6.1 Sol vs. Qwen 3.8 27B
- 78GPT-6 Luna vs. Gemini 4 Carbon
- 79Claude Fable 5.1 vs. GPT-6.1 Sol
- 80GPT-6.1 Sol vs. Gemini 3.1 Pro Preview
- 81GPT-6.1 Sol vs. Gemini 3.6 Flash
- 82GPT-6.1 Sol vs. Kimi K3
- 83Claude Fable 5 vs. GPT-6.1 Sol
- 84GPT-6.1 Sol vs. DeepSeek-V4-Pro
- 85GPT-6.1 Sol vs. Muse Wonder
- 86Claude Haiku 4.5 vs. GPT-6.1 Sol
- 87Claude Opus 4.5 vs. GPT-6.1 Sol