Gemma 3 12B vs Mistral Medium
Gemma 3 12B (2026) and Mistral Medium (2023) are compact production models from Google DeepMind and MistralAI. Gemma 3 12B ships a 33k-token context window, while Mistral Medium ships a 32k-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 only for provider fit.
Decision scorecard
Local evidence first| Signal | Gemma 3 12B | Mistral Medium |
|---|---|---|
| Best for | provider-routed production | provider-routed production |
| Decision fit | Classification and JSON / Tool use | Coding, Classification, and JSON / Tool use |
| Context window | 33k | 32k |
| 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 larger context window for long prompts, retrieval packs, or transcript analysis.
- 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 procurement flexibility.
- Local decision data tags Gemma 3 12B for Classification and JSON / Tool use.
- Local decision data tags Mistral Medium for Coding, Classification, and JSON / Tool use.
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
$820
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $756. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Mistral Medium is $1.87/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Provider overlap exists on OpenRouter; start route-level A/B tests there.
- Gemma 3 12B is $1.87/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-01-01 | 2023-12-11 |
| Context window | 33k | 32k |
| Parameters | 12B | — |
| Architecture | Decoder Only | Decoder Only |
| License | Gemma | Proprietary |
| Openness | Open weights | Proprietary |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2024-08 | - |
Pricing and availability
| Pricing attribute | Gemma 3 12B | Mistral Medium |
|---|---|---|
| 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 |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | Yes | Yes |
| 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.
Deep dive
The capability footprint is close: both models cover structured outputs. That makes context budget, benchmark fit, and provider maturity more important than a simple checklist. If your application depends on one integration detail, verify it against the provider route you plan to use, not just the base model listing.
For cost, Gemma 3 12B lists $0.04/1M input and $0.13/1M output tokens on the cheapest tracked provider, while Mistral Medium lists $0.40/1M input and $2/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Gemma 3 12B lower by about $0.81 per million blended tokens. Availability is 5 providers versus 2, so concentration risk also matters.
Choose Gemma 3 12B when long-context analysis, larger context windows, and lower input-token cost are central to the workload. Choose Mistral Medium when provider fit are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which has a larger context window, Gemma 3 12B or Mistral Medium?
Gemma 3 12B supports 33k tokens, while Mistral Medium supports 32k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Gemma 3 12B or Mistral Medium?
Gemma 3 12B is cheaper on tracked token pricing. Gemma 3 12B costs $0.04/1M input and $0.13/1M output tokens. Mistral Medium costs $0.40/1M input and $2/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Gemma 3 12B or Mistral Medium open source?
Gemma 3 12B is listed under Gemma. Mistral Medium is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for structured outputs, Gemma 3 12B or Mistral Medium?
Both Gemma 3 12B and Mistral Medium expose structured outputs. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Gemma 3 12B and Mistral Medium?
Gemma 3 12B is available on Cloudflare Workers AI, AWS Bedrock, OpenRouter, GCP Vertex AI, and Novita AI. Mistral Medium is available on Mistral AI Studio and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Gemma 3 12B over Mistral Medium?
Gemma 3 12B is ~900% cheaper at $0.04/1M; pay for Mistral Medium only for provider fit. If your workload also depends on long-context analysis, start with Gemma 3 12B; if it depends on provider fit, run the same evaluation with Mistral Medium.
Continue comparing
Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.