Gemma 3 12B Instruct vs GPT-4 Turbo Preview
Gemma 3 12B Instruct (2025) and GPT-4 Turbo Preview (2023) are compact production models from Google DeepMind and OpenAI. Gemma 3 12B Instruct ships a 128K-token context window, while GPT-4 Turbo Preview ships a 128K-token context window. On pricing, Gemma 3 12B Instruct costs $0.20/1M input tokens versus $10/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Gemma 3 12B Instruct is ~4900% cheaper at $0.20/1M; pay for GPT-4 Turbo Preview only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Gemma 3 12B Instruct | GPT-4 Turbo Preview |
|---|---|---|
| Best for | general production evaluation | multimodal apps and provider-routed production |
| Decision fit | Long context | Coding, RAG, and Agents |
| Context window | 128K | 128K |
| Cheapest output | $0.20/1M tokens | $30/1M tokens |
| Provider routes | 1 tracked | 3 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Gemma 3 12B Instruct has the lower cheapest tracked output price at $0.20/1M tokens.
- Local decision data tags Gemma 3 12B Instruct for Long context.
- GPT-4 Turbo Preview has broader tracked provider coverage for fallback and procurement flexibility.
- GPT-4 Turbo Preview uniquely exposes Vision, Structured outputs, and Code execution in local model data.
- Local decision data tags GPT-4 Turbo Preview for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemma 3 12B Instruct
$210
Cheapest tracked route/tier: Fireworks AI
GPT-4 Turbo Preview
$15,500
Cheapest tracked route/tier: OpenAI API
Estimated monthly gap: $15,290. 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 Instruct and GPT-4 Turbo Preview; plan for SDK, billing, or endpoint changes.
- GPT-4 Turbo Preview is $29.80/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- GPT-4 Turbo Preview adds Vision, Structured outputs, and Code execution in local capability data.
- No overlapping tracked provider route is sourced for GPT-4 Turbo Preview and Gemma 3 12B Instruct; plan for SDK, billing, or endpoint changes.
- Gemma 3 12B Instruct is $29.80/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Structured outputs, and Code execution before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-01-01 | 2023-11-06 |
| Context window | 128K | 128K |
| Parameters | 12B | 1.76T (8x222B MoE)* |
| Architecture | decoder only | mixture of experts |
| License | Open Source | Proprietary |
| Knowledge cutoff | 2024-08 | 2023-12 |
Pricing and availability
| Pricing attribute | Gemma 3 12B Instruct | GPT-4 Turbo Preview |
|---|---|---|
| Input price | $0.20/1M tokens | $10/1M tokens |
| Output price | $0.20/1M tokens | $30/1M tokens |
| Providers |
Capabilities
| Capability | Gemma 3 12B Instruct | GPT-4 Turbo Preview |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | No | Yes |
| Code execution | No | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: GPT-4 Turbo Preview, structured outputs: GPT-4 Turbo Preview, and code execution: GPT-4 Turbo Preview. Both models share the core language-model surface, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Gemma 3 12B Instruct lists $0.20/1M input and $0.20/1M output tokens on the cheapest tracked provider, while GPT-4 Turbo Preview lists $10/1M input and $30/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Gemma 3 12B Instruct lower by about $15.80 per million blended tokens. Availability is 1 providers versus 3, so concentration risk also matters.
Choose Gemma 3 12B Instruct when provider fit and lower input-token cost are central to the workload. Choose GPT-4 Turbo Preview when coding workflow support and broader provider choice 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.
FAQ
Which has a larger context window, Gemma 3 12B Instruct or GPT-4 Turbo Preview?
Gemma 3 12B Instruct supports 128K tokens, while GPT-4 Turbo Preview supports 128K 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 Instruct or GPT-4 Turbo Preview?
Gemma 3 12B Instruct is cheaper on tracked token pricing. Gemma 3 12B Instruct costs $0.20/1M input and $0.20/1M output tokens. GPT-4 Turbo Preview costs $10/1M input and $30/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Gemma 3 12B Instruct or GPT-4 Turbo Preview open source?
Gemma 3 12B Instruct is listed under Open Source. GPT-4 Turbo Preview 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 vision, Gemma 3 12B Instruct or GPT-4 Turbo Preview?
GPT-4 Turbo Preview has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for structured outputs, Gemma 3 12B Instruct or GPT-4 Turbo Preview?
GPT-4 Turbo Preview has the clearer documented structured outputs signal in this comparison. If structured outputs is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Gemma 3 12B Instruct and GPT-4 Turbo Preview?
Gemma 3 12B Instruct is available on Fireworks AI. GPT-4 Turbo Preview is available on OpenAI API, Azure OpenAI, and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-19. Data sourced from public model cards and provider documentation.