Mistral AI vs OpenAI:Which is searched more?
In September 2026, OpenAI had more branded searches than Mistral AI among AI model companies worldwide. OpenAI was estimated to have 6.1M branded searches compared to Mistral AI’s 1.3M, and held a 48.1% Share of Search versus Mistral AI’s 10%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Mistral AI or OpenAI?
Compare the ai model companies people choose between. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for OpenAI, Mistral AI. The figures are in the table below the chart.
View monthly share of search table
| Month | OpenAI | Anthropic | Mistral AI | xAI | Google DeepMind |
|---|---|---|---|---|---|
| Oct 2025 | 78.1% | 7% | 10.9% | 3.1% | 0.77% |
| Nov 2025 | 76.7% | 8.4% | 10.7% | 3.1% | 1.1% |
| Dec 2025 | 81.5% | 6% | 9.4% | 2.2% | 0.81% |
| Jan 2026 | 66.5% | 13.3% | 13.9% | 4.9% | 1.5% |
| Feb 2026 | 43% | 43% | 9% | 3.9% | 1.2% |
| Mar 2026 | 65.7% | 24.2% | 7.5% | 2.2% | 0.44% |
| Apr 2026 | 56.5% | 30.9% | 9.7% | 2.3% | 0.68% |
| May 2026 | 58.9% | 26.4% | 10.9% | 2.9% | 0.87% |
| Jun 2026 | 42% | 42% | 12.6% | 2.5% | 0.92% |
| Jul 2026 | 55.1% | 30.2% | 11.5% | 2.2% | 1% |
| Aug 2026 | 54.8% | 30% | 11.4% | 2.2% | 1.5% |
| Sep 2026 | 48.1% | 39.3% | 10% | 1.6% | 1.1% |
How has the Mistral AI and OpenAI comparison changed over the last 12 months?
3 findings
- OpenAI was ahead of Mistral AI in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Mistral AI’s estimated Share of Search among AI model companies worldwide moved from 10.9% to 10%, and its estimated monthly branded searches held steady at 1.3M.
- Across the 12 months ending September 2026, OpenAI’s estimated Share of Search among AI model companies worldwide moved from 78.1% to 48.1%, and its estimated monthly branded searches moved from 9.1M to 6.1M.
How did search popularity change for AI model companies worldwide in September 2026?
2 changes
In September 2026, OpenAI lost estimated Share of Search among AI model companies worldwide, from 54.8% to 48.1%.
In September 2026, Mistral AI lost estimated Share of Search among AI model companies worldwide, from 11.4% to 10%.
Other head-to-heads among AI model companies
How each brand is measured
Brandwave collects information about searches that people make online using Mistral AI’s and OpenAI’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Mistral AI
3 branded search terms
- mistral
- mistral ai
- mistralai
OpenAI
1 branded search term
- openai
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.