Gemma 3 12B vs Mistral Medium 3 Instruct
Gemma 3 12B (2026) and Mistral Medium 3 Instruct (2025) are compact production models from Google DeepMind and MistralAI. Gemma 3 12B ships a 33k-token context window, while Mistral Medium 3 Instruct ships a 128k-token context window. On pricing, Gemma 3 12B costs $0.04/1M input tokens versus $0.40/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Gemma 3 12B is ~900% cheaper at $0.04/1M; pay for Mistral Medium 3 Instruct only for long-context analysis.
Decision scorecard
Local evidence first| Signal | Gemma 3 12B | Mistral Medium 3 Instruct |
|---|---|---|
| Best for | provider-routed production | multimodal apps and provider-routed production |
| Decision fit | Classification and JSON / Tool use | Long context and Vision |
| Context window | 33k | 128k |
| Cheapest output | $0.13/1M tokens | $2/1M tokens |
| Provider routes | 5 tracked | 2 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Gemma 3 12B has the lower cheapest tracked output price at $0.13/1M tokens.
- Gemma 3 12B has broader tracked provider coverage for fallback and route flexibility.
- Gemma 3 12B uniquely exposes Structured outputs in local model data.
- Local decision data tags Gemma 3 12B for Classification and JSON / Tool use.
- Mistral Medium 3 Instruct has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Mistral Medium 3 Instruct uniquely exposes Vision and Multimodal in local model data.
- Local decision data tags Mistral Medium 3 Instruct for Long context and Vision.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemma 3 12B
$64.50
Cheapest tracked route/tier: OpenRouter
Mistral Medium 3 Instruct
$820
Cheapest tracked route/tier: Mistral AI Studio
Estimated monthly gap: $756. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Gemma 3 12B and Mistral Medium 3 Instruct; plan for SDK, billing, or endpoint changes.
- Mistral Medium 3 Instruct is $1.87/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Structured outputs before moving production traffic.
- Mistral Medium 3 Instruct adds Vision and Multimodal in local capability data.
- No overlapping tracked provider route is sourced for Mistral Medium 3 Instruct and Gemma 3 12B; plan for SDK, billing, or endpoint changes.
- Gemma 3 12B is $1.87/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision and Multimodal before moving production traffic.
- Gemma 3 12B adds Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-01-01 | 2025-10-01 |
| Context window | 33k | 128k |
| Parameters | 12B | — |
| Architecture | Decoder Only | Decoder Only |
| License | Gemma | Proprietary |
| Openness | Open weights | Proprietary |
| Weights | Unknown | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2024-08 | 2025-03 |
Pricing and availability
| Pricing attribute | Gemma 3 12B | Mistral Medium 3 Instruct |
|---|---|---|
| Input price | $0.04/1M tokens | $0.40/1M tokens |
| Output price | $0.13/1M tokens | $2/1M tokens |
| Providers |
Capabilities
| Capability | Gemma 3 12B | Mistral Medium 3 Instruct |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | No |
| JSON / Tool use | No | No |
| Structured outputs | Yes | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Continue comparing
Popular comparisons for Gemma 3 12B
Popular comparisons for Mistral Medium 3 Instruct
Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.