Code Davinci 001 vs Gemini 3.1 Pro Preview Custom Tools
Code Davinci 001 (2021) and Gemini 3.1 Pro Preview Custom Tools (2026) are agentic coding models from OpenAI and Google DeepMind. Code Davinci 001 ships a not-yet-sourced context window, while Gemini 3.1 Pro Preview Custom Tools ships a 1M-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing.
Gemini 3.1 Pro Preview Custom Tools is safer overall; choose Code Davinci 001 when coding workflow support matters.
Decision scorecard
Local evidence first| Signal | Code Davinci 001 | Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|
| Decision fit | Coding | RAG, Long context, and Classification |
| Context window | — | 1M |
| Cheapest output | - | $12/1M tokens |
| Provider routes | 0 tracked | 1 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Local decision data tags Code Davinci 001 for Coding.
- Gemini 3.1 Pro Preview Custom Tools has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 3.1 Pro Preview Custom Tools has broader tracked provider coverage for fallback and procurement flexibility.
- Gemini 3.1 Pro Preview Custom Tools uniquely exposes Structured outputs in local model data.
- Local decision data tags Gemini 3.1 Pro Preview Custom Tools for RAG, Long context, and Classification.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Code Davinci 001
Unavailable
No complete token price in local provider data
Gemini 3.1 Pro Preview Custom Tools
$4,600
Cheapest tracked route: OpenRouter
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Code Davinci 001 and Gemini 3.1 Pro Preview Custom Tools; plan for SDK, billing, or endpoint changes.
- Gemini 3.1 Pro Preview Custom Tools adds Structured outputs in local capability data.
- No overlapping tracked provider route is sourced for Gemini 3.1 Pro Preview Custom Tools and Code Davinci 001; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Structured outputs before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2021-07-01 | 2026-01-01 |
| Context window | — | 1M |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Unknown |
| Knowledge cutoff | - | 2025-01 |
Pricing and availability
| Pricing attribute | Code Davinci 001 | Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|
| Input price | - | $2/1M tokens |
| Output price | - | $12/1M tokens |
| Providers | - |
Capabilities
| Capability | Code Davinci 001 | Gemini 3.1 Pro Preview Custom Tools |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | No | Yes |
| Code execution | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on structured outputs: Gemini 3.1 Pro Preview Custom Tools. 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.
Pricing coverage is uneven: Code Davinci 001 has no token price sourced yet and Gemini 3.1 Pro Preview Custom Tools has $2/1M input tokens. Provider availability is 0 tracked routes versus 1. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose Code Davinci 001 when coding workflow support are central to the workload. Choose Gemini 3.1 Pro Preview Custom Tools when provider fit 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. It also helps separate model capability from provider packaging, which can change cost and latency. For teams standardizing a stack, that distinction is often the difference between a benchmark win and a reliable deployment.
FAQ
Is Code Davinci 001 or Gemini 3.1 Pro Preview Custom Tools open source?
Code Davinci 001 is listed under Proprietary. Gemini 3.1 Pro Preview Custom Tools is listed under Unknown. 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, Code Davinci 001 or Gemini 3.1 Pro Preview Custom Tools?
Gemini 3.1 Pro Preview Custom Tools 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 Code Davinci 001 and Gemini 3.1 Pro Preview Custom Tools?
Code Davinci 001 is available on the tracked providers still being sourced. Gemini 3.1 Pro Preview Custom Tools is available on OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
When should I pick Code Davinci 001 over Gemini 3.1 Pro Preview Custom Tools?
Gemini 3.1 Pro Preview Custom Tools is safer overall; choose Code Davinci 001 when coding workflow support matters. If your workload also depends on coding workflow support, start with Code Davinci 001; if it depends on provider fit, run the same evaluation with Gemini 3.1 Pro Preview Custom Tools.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.