DeepSeek V3 Base vs Gemini Robotics-ER 1.5 Preview
DeepSeek V3 Base (2024) and Gemini Robotics-ER 1.5 Preview (2025) are compact production models from DeepSeek and Google DeepMind. DeepSeek V3 Base ships a 128K-token context window, while Gemini Robotics-ER 1.5 Preview ships a 32K-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.
DeepSeek V3 Base fits 4x more tokens; pick it for long-context work and Gemini Robotics-ER 1.5 Preview for tighter calls.
Decision scorecard
Local evidence first| Signal | DeepSeek V3 Base | Gemini Robotics-ER 1.5 Preview |
|---|---|---|
| Best for | general production evaluation | multimodal apps and tool-calling agents |
| Decision fit | Long context | Agents, Vision, and JSON / Tool use |
| Context window | 128K | 32K |
| Cheapest output | - | - |
| Provider routes | 0 tracked | 1 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- DeepSeek V3 Base has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Local decision data tags DeepSeek V3 Base for Long context.
- Gemini Robotics-ER 1.5 Preview has broader tracked provider coverage for fallback and procurement flexibility.
- Gemini Robotics-ER 1.5 Preview uniquely exposes Vision, Multimodal, and Function calling in local model data.
- Local decision data tags Gemini Robotics-ER 1.5 Preview for Agents, Vision, and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
DeepSeek V3 Base
Unavailable
No complete token price in local provider data
Gemini Robotics-ER 1.5 Preview
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for DeepSeek V3 Base and Gemini Robotics-ER 1.5 Preview; plan for SDK, billing, or endpoint changes.
- Gemini Robotics-ER 1.5 Preview adds Vision, Multimodal, and Function calling in local capability data.
- No overlapping tracked provider route is sourced for Gemini Robotics-ER 1.5 Preview and DeepSeek V3 Base; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision, Multimodal, and Function calling before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-12-26 | 2025-03-12 |
| Context window | 128K | 32K |
| Parameters | 671B total, 37B active (MoE) | — |
| Architecture | mixture of experts | decoder only |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2024-07 | - |
Pricing and availability
| Pricing attribute | DeepSeek V3 Base | Gemini Robotics-ER 1.5 Preview |
|---|---|---|
| Input price | - | - |
| Output price | - | - |
| Providers | - |
Pricing not yet sourced for either model.
Capabilities
| Capability | DeepSeek V3 Base | Gemini Robotics-ER 1.5 Preview |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | No | No |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | No | No |
| Code execution | No | No |
| 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: Gemini Robotics-ER 1.5 Preview, multimodal input: Gemini Robotics-ER 1.5 Preview, function calling: Gemini Robotics-ER 1.5 Preview, and tool use: Gemini Robotics-ER 1.5 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.
Pricing coverage is uneven: DeepSeek V3 Base has no token price sourced yet and Gemini Robotics-ER 1.5 Preview has no token price sourced yet. 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 DeepSeek V3 Base when long-context analysis and larger context windows are central to the workload. Choose Gemini Robotics-ER 1.5 Preview when vision-heavy evaluation 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, DeepSeek V3 Base or Gemini Robotics-ER 1.5 Preview?
DeepSeek V3 Base supports 128K tokens, while Gemini Robotics-ER 1.5 Preview supports 32K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is DeepSeek V3 Base or Gemini Robotics-ER 1.5 Preview open source?
DeepSeek V3 Base is listed under Proprietary. Gemini Robotics-ER 1.5 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 V3 Base or Gemini Robotics-ER 1.5 Preview?
Gemini Robotics-ER 1.5 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 V3 Base or Gemini Robotics-ER 1.5 Preview?
Gemini Robotics-ER 1.5 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.
Which is better for function calling, DeepSeek V3 Base or Gemini Robotics-ER 1.5 Preview?
Gemini Robotics-ER 1.5 Preview has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run DeepSeek V3 Base and Gemini Robotics-ER 1.5 Preview?
DeepSeek V3 Base is available on the tracked providers still being sourced. Gemini Robotics-ER 1.5 Preview is available on Google AI Studio. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.