Gemini Robotics-ER 1.6 Preview vs GPT-5.4-Cyber
Gemini Robotics-ER 1.6 Preview (2026) and GPT-5.4-Cyber (2026) are frontier-tier reasoning models from Google DeepMind and OpenAI. Gemini Robotics-ER 1.6 Preview ships a 128k-token context window, while GPT-5.4-Cyber ships a not-yet-sourced context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads. It focuses on practical selection signals rather than broad model-family marketing.
Gemini Robotics-ER 1.6 Preview is safer overall; choose GPT-5.4-Cyber when vision-heavy evaluation matters.
Decision scorecard
Local evidence first| Signal | Gemini Robotics-ER 1.6 Preview | GPT-5.4-Cyber |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | reasoning-heavy apps and multimodal apps |
| Decision fit | RAG, Agents, and Long context | Vision |
| Context window | 128k | — |
| Cheapest output | $5/1M tokens | - |
| Provider routes | 1 tracked | 0 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Gemini Robotics-ER 1.6 Preview has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini Robotics-ER 1.6 Preview has broader tracked provider coverage for fallback and route flexibility.
- Gemini Robotics-ER 1.6 Preview uniquely exposes JSON / Tool use and Structured outputs in local model data.
- Local decision data tags Gemini Robotics-ER 1.6 Preview for RAG, Agents, and Long context.
- Local decision data tags GPT-5.4-Cyber for Vision.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Gemini Robotics-ER 1.6 Preview
$2,050
Cheapest tracked route/tier: Google AI Studio
GPT-5.4-Cyber
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 Gemini Robotics-ER 1.6 Preview and GPT-5.4-Cyber; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for JSON / Tool use and Structured outputs before moving production traffic.
- No overlapping tracked provider route is sourced for GPT-5.4-Cyber and Gemini Robotics-ER 1.6 Preview; plan for SDK, billing, or endpoint changes.
- Gemini Robotics-ER 1.6 Preview adds JSON / Tool use and Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-14 | 2026-04-14 |
| Context window | 128k | — |
| Parameters | — | — |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Weights | Not released | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | - | 2025-08 |
Pricing and availability
| Pricing attribute | Gemini Robotics-ER 1.6 Preview | GPT-5.4-Cyber |
|---|---|---|
| Input price | $1/1M tokens | - |
| Output price | $5/1M tokens | - |
| Providers | - |
Capabilities
| Capability | Gemini Robotics-ER 1.6 Preview | GPT-5.4-Cyber |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| JSON / Tool use | Yes | No |
| Structured outputs | Yes | No |
| 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.
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Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.