Gemini Robotics-ER 1.6 Preview vs GPT-4o-mini Search Preview

Gemini Robotics-ER 1.6 Preview (2026) and GPT-4o-mini Search Preview (2025) are frontier reasoning models from Google DeepMind and OpenAI. Both ship a 128k-token context window. On pricing, GPT-4o-mini Search Preview costs $0.15/1M input tokens versus $1/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

GPT-4o-mini Search Preview is ~567% cheaper at $0.15/1M; pay for Gemini Robotics-ER 1.6 Preview only for reasoning depth.

Decision scorecard

Local evidence first
SignalGemini Robotics-ER 1.6 PreviewGPT-4o-mini Search Preview
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsprovider-routed production
Decision fitRAG, Agents, and Long contextRAG, Long context, and Classification
Context window128k128k
Cheapest output$5/1M tokens$0.60/1M tokens
Provider routes1 tracked3 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose Gemini Robotics-ER 1.6 Preview when...
  • Gemini Robotics-ER 1.6 Preview uniquely exposes Vision, Multimodal, and Reasoning in local model data.
  • Local decision data tags Gemini Robotics-ER 1.6 Preview for RAG, Agents, and Long context.
Choose GPT-4o-mini Search Preview when...
  • GPT-4o-mini Search Preview has the lower cheapest tracked output price at $0.60/1M tokens.
  • GPT-4o-mini Search Preview has broader tracked provider coverage for fallback and route flexibility.
  • Local decision data tags GPT-4o-mini Search Preview for RAG, Long context, and Classification.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate GPT-4o-mini Search Preview

Gemini Robotics-ER 1.6 Preview

$2,050

Cheapest tracked route/tier: Google AI Studio

GPT-4o-mini Search Preview

$270

Cheapest tracked route/tier: OpenRouter

Estimated monthly gap: $1,780. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Gemini Robotics-ER 1.6 Preview -> GPT-4o-mini Search Preview
  • No overlapping tracked provider route is sourced for Gemini Robotics-ER 1.6 Preview and GPT-4o-mini Search Preview; plan for SDK, billing, or endpoint changes.
  • GPT-4o-mini Search Preview is $4.40/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
GPT-4o-mini Search Preview -> Gemini Robotics-ER 1.6 Preview
  • No overlapping tracked provider route is sourced for GPT-4o-mini Search Preview and Gemini Robotics-ER 1.6 Preview; plan for SDK, billing, or endpoint changes.
  • Gemini Robotics-ER 1.6 Preview is $4.40/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Gemini Robotics-ER 1.6 Preview adds Vision, Multimodal, and Reasoning in local capability data.

Specs

Specification
Released2026-04-142025-02-26
Context window128k128k
Parameters——
ArchitectureDecoder OnlyDecoder Only
LicenseProprietaryProprietary
OpennessProprietaryProprietary
WeightsNot releasedNot released
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: conditional
Knowledge cutoff-2023-10

Pricing and availability

Pricing attributeGemini Robotics-ER 1.6 PreviewGPT-4o-mini Search Preview
Input price$1/1M tokens$0.15/1M tokens
Output price$5/1M tokens$0.60/1M tokens
Providers

Capabilities

CapabilityGemini Robotics-ER 1.6 PreviewGPT-4o-mini Search Preview
VisionYesNo
MultimodalYesNo
ReasoningYesNo
JSON / Tool useYesNo
Structured outputsYesYes
Code executionNoNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

Continue comparing

Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.