Mistral Medium 3 vs Gemini Robotics-ER 1.6 Preview
Too close to call on our weighted score (Gemini Robotics-ER 1.6 Preview 50, Mistral Medium 3 47). The right pick depends on what you value most.
Mistral AIMistral Medium 3
47/100- ECI134.1
- Price$0.40 / $2.00
- Context131K
GoogleGemini Robotics-ER 1.6 Preview
50/100- ECI—
- Price$1.00 / $5.00
- Context131K
Add a model
Make it a three-way comparison.
Too close to call
It is close. Our weighted score puts them within 3 points (Gemini Robotics-ER 1.6 Preview 50/100, Mistral Medium 3 47/100), so choose by what matters most for your work: Mistral Medium 3 on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceMistral Medium 3Mistral Medium 3 $0.80 · Gemini Robotics-ER 1.6 Preview $2.00 per 1M tokens (3:1 blend)
- Longest contextAbout the sameMistral Medium 3 131,072 · Gemini Robotics-ER 1.6 Preview 131,072 tokens
- Widest inputsGemini Robotics-ER 1.6 PreviewMistral Medium 3: Text, Images · Gemini Robotics-ER 1.6 Preview: Text, Images, Audio, Video
- Self-hostingNo open weightsBoth are available only through APIs
| Measure | Weight | Mistral Medium 3 | Gemini Robotics-ER 1.6 Preview |
|---|---|---|---|
| Price | 50% | 54 | 36 |
| Inputs & features | 30% | 50 | 90 |
| Context window | 20% | 24 | 24 |
| Overall | 100% | 47/100 | 50/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Mistral Medium 3Mistral AI | Gemini Robotics-ER 1.6 PreviewGoogle |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | 134.1 | — |
| ECI rank | #117 of 148 | — |
| GPQA DiamondGraduate-level science questions | 59.5% | — |
| OTIS Mock AIME 2024–2025Competition mathematics | 32.2% | — |
| Price per million tokens | ||
| Input | $0.40 (best) | $1.00 |
| Output | $2.00 (best) | $5.00 |
| Cached input | — | — |
| Blended (3:1) | $0.80 (best) | $2.00 |
| Long-context rate | Same rate | Same rate |
| Price source | Official Mistral API | Median of 1 providers |
| Limits | ||
| Context window | 131,072 tokens | 131,072 tokens |
| Max output | 131,072 tokens (best) | 65,536 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | Yes |
| PDFs | No | No |
| Audio | No | Yes |
| Video | No | Yes |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | Yes |
| Availability | ||
| Weights | Proprietary | Proprietary |
| API model ID | mistral-medium-2505 | — |
| API providers | 5 (best) | 1 |
| Released | May 7, 2025 | Apr 14, 2026 |
| Knowledge cutoff | May 2025 | Jan 2025 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Mistral Medium 3$8.00
- Gemini Robotics-ER 1.6 Preview$20.00
Which should you choose?
Which is better: Mistral Medium 3 or Gemini Robotics-ER 1.6 Preview?
It is close. Our weighted score puts them within 3 points (Gemini Robotics-ER 1.6 Preview 50/100, Mistral Medium 3 47/100), so choose by what matters most for your work: Mistral Medium 3 on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, Mistral Medium 3 or Gemini Robotics-ER 1.6 Preview?
Mistral Medium 3 is cheaper at $0.40 input / $2.00 output per million tokens (official Mistral API price). Gemini Robotics-ER 1.6 Preview costs $1.00 input / $5.00 output per million tokens (median across 1 API provider). At a typical mix of three input tokens to one output token, that is $0.80 per million tokens for Mistral Medium 3 versus $2.00 for Gemini Robotics-ER 1.6 Preview (2.5× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Mistral Medium 3 has an ECI of 134.1 and Gemini Robotics-ER 1.6 Preview has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Mistral Medium 3 and Gemini Robotics-ER 1.6 Preview yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
Mistral Medium 3 and Gemini Robotics-ER 1.6 Preview share the same 131,072-token context window. Maximum output per response: Mistral Medium 3 up to 131,072, Gemini Robotics-ER 1.6 Preview up to 65,536 tokens.
Which can read images, PDFs, audio or video?
Mistral Medium 3 accepts text and images; Gemini Robotics-ER 1.6 Preview accepts text, images, audio and video. Gemini Robotics-ER 1.6 Preview handles the widest range of inputs.
Are any of these open source?
No. Mistral Medium 3 and Gemini Robotics-ER 1.6 Preview are proprietary and only available through APIs and apps.
Which is newer?
Gemini Robotics-ER 1.6 Preview is the newest, released Apr 14, 2026. Mistral Medium 3 came out May 7, 2025. Knowledge cutoff: Mistral Medium 3 May 2025, Gemini Robotics-ER 1.6 Preview Jan 2025.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
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