Gemini 3 Flash Preview versus Mistral Large 4
Gemini 3 Flash Preview (Google DeepMind) and Mistral Large 4 (Mistral AI) compared point by point: measured performance, pricing, context and capabilities.
Data as of October 22, 2026
Side-by-side comparison
| Criterion | Gemini 3 Flash Preview | Mistral Large 4 |
|---|---|---|
| Developer | Google DeepMind | Mistral AI |
| Released | December 17, 2025 | October 6, 2026 |
| Capability index | 80.3 / 100 | 79.7 / 100 |
| Input price | $0.50 | $1.36 |
| Output price | $3 | $4.18 |
| Cost of a typical task | $0.016 | $0.036 |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Maximum output | 65,536 tokens | 262,144 tokens |
| Reasoning mode | Yes | Yes |
| Tool calling | Yes | Yes |
| Accepted inputs | text, image, video, audio, PDF | text, image, PDF |
| Open weights | No | No |
| Knowledge cutoff | January 2025 | Not disclosed |
What are we comparing?
Gemini 3 Flash Preview and Mistral Large 4 are two mid-range models, balancing quality and cost, one from Google DeepMind, the other from Mistral AI. Gemini 3 Flash Preview was released on December 17, 2025, Mistral Large 4 on October 6, 2026.
All figures below come from public sources checked on October 22, 2026: models.dev and OpenRouter for prices and capabilities, Epoch AI for scores.
Which one is more capable?
On our capability index, Gemini 3 Flash Preview scores 80.3 out of 100 and Mistral Large 4 79.7. The gap is too small to separate them.
On the 3 benchmarks reported for both, Gemini 3 Flash Preview wins 1 time and Mistral Large 4 2:
- GPQA Diamond (PhD-level science questions): Gemini 3 Flash Preview 89.4%, Mistral Large 4 88.1%
- OTIS Mock AIME (competition mathematics problems): Gemini 3 Flash Preview 95.6%, Mistral Large 4 98.3%
- FrontierMath (very hard research-level mathematics): Gemini 3 Flash Preview 51.2%, Mistral Large 4 58.6%
Which one costs less?
Gemini 3 Flash Preview costs $0.50 per million input tokens and $3 per million output tokens; Mistral Large 4 costs $1.36 and $4.18.
For a typical agent task (read 20,000 tokens, write 2,000), expect $0.016 with Gemini 3 Flash Preview versus $0.036 with Mistral Large 4. Gemini 3 Flash Preview is 2.2 times cheaper, a gap that adds up quickly over 1,000 tasks: $19.56 difference.
Run the numbers with your own volumes in the agent cost calculator.
Context and capabilities
Both models have the same context window: 1,048,576 tokens, roughly 1,573 pages.
Reasoning mode: Gemini 3 Flash Preview yes, Mistral Large 4 yes. Tool calling: Gemini 3 Flash Preview yes, Mistral Large 4 yes. Image input: Gemini 3 Flash Preview yes, Mistral Large 4 yes.
Neither publishes its weights: both are used through an API.
In short
Our reading of the data:
- Choose Gemini 3 Flash Preview for a lower cost.
- Choose Mistral Large 4 for a more recent release.
This verdict relies on public figures; it does not replace a trial on your own tasks.
Other comparisons
Frequently asked questions
Gemini 3 Flash Preview or Mistral Large 4: which is better?
On our index (Epoch AI data), Gemini 3 Flash Preview scores 80.3 and Mistral Large 4 79.7 out of 100. The best choice also depends on price and on your use case.
Which one is cheaper?
Gemini 3 Flash Preview. To read 20,000 tokens and write 2,000, expect $0.016 with Gemini 3 Flash Preview and $0.036 with Mistral Large 4 (prices as of October 22, 2026).
Which one has the larger context window?
Neither: both accept 1,048,576 tokens.
Can I run Gemini 3 Flash Preview or Mistral Large 4 on my own servers?
No: both are closed models, available through an API.
Data sources
- Models.dev — Model data: models.dev (open-source project)
- OpenRouter — Market prices cross-checked with OpenRouter
- Epoch AI — AI Benchmarking Hub — Epoch AI, “AI Benchmarking Hub”, epoch.ai, CC BY 4.0
Data as of October 22, 2026
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