OpenAI
Overall67/100
Tech92/100
UX / UI64 / 55
Models tested9
Best model in our testGPT-6 Astra
What is OpenAI?
A US company founded in December 2015 as a non-profit research lab, now with a commercial arm. It is behind ChatGPT, the GPT models and Codex.
Facts checked on 18/10/2026 · source ↗
- Founded
- 2015
- Headquarters
- San Francisco, USA
- CEO
- Sam Altman
- Website
- openai.com ↗
- Models tested
- GPT-6 Astra, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna, GPT-5.6 Sol, GPT-5.6 Terra, GPT-5.6 Luna, GPT-5.5, GPT-5.4 mini
Models by OpenAI we tested
Every model by OpenAI we tested on the same prompts as all other models. Click a model for details.
| Model | Released | Overall | Score | Tech | UX / UI | Loads | Total cost | Average time |
|---|---|---|---|---|---|---|---|---|
| GPT-6.1 Sol | 29/09/2026 | 93 | 39.5/40 | 98 | 77 / 82 | 5/5 | $1.08 | 6 min 23 s |
| GPT-6 Sol | 22/09/2026 | 66 | 26.5/40 (33.5) | 92 | 54 / 64 | 4/5 | $1.25 | 2 min 48 s |
| GPT-6 Luna | 22/09/2026 | 66 | 25/40 | 95 | 68 / 60 | 5/5 | $0.048 | 1 min 29 s |
| GPT-6 Astra | 03/09/2026 | 93 | 40/40 | 99 | 79 / 76 | 5/5 | $7.65 | 7 min 56 s |
| GPT-5.6 Sol | 09/07/2026 | 77 | 32.5/40 | 94 | 64 / 60 | 5/5 | $1.69 | 2 min 30 s |
| GPT-5.6 Terra | 09/07/2026 | 62 | 24/40 (29.5) | 93 | 70 / 52 | 4/5 | $0.52 | 1 min 09 s |
| GPT-5.6 Luna | 09/07/2026 | 15 | 5.5/40 (11.5) | 73 | 40 / 14 | 1/5 | $0.034 | 41 s |
| GPT-5.5 | 23/04/2026 | 73 | 30.5/40 (37) | 92 | 68 / 58 | 4/5 | $2.06 | 2 min 19 s |
| GPT-5.4 mini | 17/03/2026 | 61 | 26.5/40 | 91 | 57 / 32 | 4/5 | $2.16 | 6 min 04 s |
Cost = tokens priced with the API price list valid on the date shown next to the cost (prices change). ≈ = estimate (only the total token count is known), no ≈ = exact from input / output tokens. “Loads” = the page opens without errors; technical health also checks behaviour during use – judge the quality in the viewer.