DeepSeek Coder V2 Lite vs Gemini 3.1 Pro Preview
DeepSeek Coder V2 Lite (2024) and Gemini 3.1 Pro Preview (2026) compare a coding-specialized model against a standalone API model. DeepSeek Coder V2 Lite ships a 128k-token context window, while Gemini 3.1 Pro Preview ships a 1m-token context window. On Google-Proof Q&A, Gemini 3.1 Pro Preview leads by 41.9 pts. This page treats the result as workflow and deployment fit, not a universal model winner.
Treat this as a product-type comparison: DeepSeek Coder V2 Lite is coding-specialized model, while Gemini 3.1 Pro Preview is standalone API model. Choose based on workflow fit before reading any benchmark or price row as decisive.
Decision scorecard
Local evidence first| Signal | DeepSeek Coder V2 Lite | Gemini 3.1 Pro Preview |
|---|---|---|
| Product type | Coding-specialized model | Standalone API model |
| Best for | custom coding agents and code generation | multimodal apps, tool-calling agents, and long-context analysis |
| Decision fit | Coding, Long context, and Classification | Coding, RAG, and Agents |
| Context window | 128k | 1m |
| Cheapest output | $0.50/1M tokens | $12/1M tokens |
| Provider routes | 1 tracked | 5 tracked |
| Shared benchmarks | 3 shared | Google-Proof Q&A leader |
Decision tradeoffs
- DeepSeek Coder V2 Lite has the lower cheapest tracked output price at $0.50/1M tokens.
- Local decision data tags DeepSeek Coder V2 Lite for Coding, Long context, and Classification.
- Gemini 3.1 Pro Preview holds a shared-benchmark lead on Google-Proof Q&A, ahead by 41.9 points.
- Gemini 3.1 Pro Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 3.1 Pro Preview has broader tracked provider coverage for fallback and procurement flexibility.
- Gemini 3.1 Pro Preview uniquely exposes Vision, Multimodal, and Function calling in local model data.
- Local decision data tags Gemini 3.1 Pro 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.
DeepSeek Coder V2 Lite
$525
Cheapest tracked route/tier: Fireworks AI
Gemini 3.1 Pro Preview
$4,600
Cheapest tracked route/tier: Google AI Studio
Estimated monthly gap: $4,075. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for DeepSeek Coder V2 Lite and Gemini 3.1 Pro Preview; plan for SDK, billing, or endpoint changes.
- Gemini 3.1 Pro Preview is $11.50/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Gemini 3.1 Pro Preview adds Vision, Multimodal, and Function calling in local capability data.
- No overlapping tracked provider route is sourced for Gemini 3.1 Pro Preview and DeepSeek Coder V2 Lite; plan for SDK, billing, or endpoint changes.
- DeepSeek Coder V2 Lite is $11.50/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Function calling before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-06-17 | 2026-02-19 |
| Context window | 128k | 1m |
| Parameters | 16B | — |
| Architecture | Mixture of Experts | Decoder Only |
| License | DeepSeek License | Proprietary |
| Openness | Open weights | Proprietary |
| Commercial use | Commercial use: permitted | Commercial use: conditional |
| Knowledge cutoff | 2023-11 | 2025-01 |
Pricing and availability
| Pricing attribute | DeepSeek Coder V2 Lite | Gemini 3.1 Pro Preview |
|---|---|---|
| Input price | $0.50/1M tokens |
|
| Output price | $0.50/1M tokens |
|
| Providers |
Capabilities
| Capability | DeepSeek Coder V2 Lite | Gemini 3.1 Pro Preview |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | No |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | No | Yes |
| Code execution | No | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | DeepSeek Coder V2 Lite | Gemini 3.1 Pro Preview |
|---|---|---|
| Google-Proof Q&A | 52.4 | 94.3 |
| HumanEval | 81.1 | 94.0 |
| Massive Multitask Language Understanding | 78.9 | 98.0 |
Deep dive
On shared benchmark coverage, Google-Proof Q&A has DeepSeek Coder V2 Lite at 52.4 and Gemini 3.1 Pro Preview at 94.3, with Gemini 3.1 Pro Preview ahead by 41.9 points; HumanEval has DeepSeek Coder V2 Lite at 81.1 and Gemini 3.1 Pro Preview at 94, with Gemini 3.1 Pro Preview ahead by 12.9 points; Massive Multitask Language Understanding has DeepSeek Coder V2 Lite at 78.9 and Gemini 3.1 Pro Preview at 98, with Gemini 3.1 Pro Preview ahead by 19.1 points. The largest visible gap is 41.9 points on Google-Proof Q&A, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on vision: Gemini 3.1 Pro Preview, multimodal input: Gemini 3.1 Pro Preview, function calling: Gemini 3.1 Pro Preview, tool use: Gemini 3.1 Pro Preview, structured outputs: Gemini 3.1 Pro Preview, and code execution: Gemini 3.1 Pro 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, DeepSeek Coder V2 Lite lists $0.50/1M input and $0.50/1M output tokens on the cheapest tracked provider, while Gemini 3.1 Pro Preview lists tiered pricing: 0-200,001t is $2/1M input and $12/1M output; 200,001t+ is $4/1M input and $18/1M output. A 70/30 input-output blend puts DeepSeek Coder V2 Lite lower by about $4.50 per million blended tokens. For tiered rows, this cheapest-track view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 1 providers versus 5, so concentration risk also matters.
Choose DeepSeek Coder V2 Lite when coding workflow support and lower input-token cost are central to the workload. Choose Gemini 3.1 Pro Preview when coding workflow support, larger context windows, 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.
FAQ
Which has a larger context window, DeepSeek Coder V2 Lite or Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview supports 1m tokens, while DeepSeek Coder V2 Lite 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, DeepSeek Coder V2 Lite or Gemini 3.1 Pro Preview?
DeepSeek Coder V2 Lite lists $0.50/1M input and $0.50/1M output tokens on the cheapest tracked provider. Gemini 3.1 Pro Preview lists tiered pricing: 0-200,001t is $2/1M input and $12/1M output; 200,001t+ is $4/1M input and $18/1M output. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.
Is DeepSeek Coder V2 Lite or Gemini 3.1 Pro Preview open source?
DeepSeek Coder V2 Lite is listed under DeepSeek License. Gemini 3.1 Pro 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, DeepSeek Coder V2 Lite or Gemini 3.1 Pro Preview?
Gemini 3.1 Pro 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 multimodal input, DeepSeek Coder V2 Lite or Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview has the clearer documented multimodal input signal in this comparison. If multimodal input is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run DeepSeek Coder V2 Lite and Gemini 3.1 Pro Preview?
DeepSeek Coder V2 Lite is available on Fireworks AI. Gemini 3.1 Pro Preview is available on Google AI Studio, GCP Vertex AI, OpenRouter, Replicate API, and Vercel AI Gateway. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-19. Data sourced from public model cards and provider documentation.