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Gemini 2.5 Pro Preview 06-05 vs GPT-5.4 Nano

A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.

Quick verdict: which should you choose?

Choose Gemini 2.5 Pro Preview 06-05 if you need

  • Choose GPT-5.4 Nano if you need the lowest output price at $1.25 per million tokens.
  • Choose GPT-5.4 Nano if you need fast generation at 146.5 tokens per second.
  • Choose GPT-5.4 Nano if you need a 400k token context window for file and image inputs.
  • Choose GPT-5.4 Nano if you need OpenAI's compact multimodal handling without audio requirements.

Choose GPT-5.4 Nano if you need

  • Choose Gemini 2.5 Pro Preview 06-05 if you need the largest context at 1,048,576 tokens.
  • Choose Gemini 2.5 Pro Preview 06-05 if you need native support for text, image, audio and files.
  • Choose Gemini 2.5 Pro Preview 06-05 if you need strong reasoning and coding across long media inputs.
  • Choose Gemini 2.5 Pro Preview 06-05 if you need large file upload capabilities.

Verdict

GPT-5.4 Nano leads on speed and price with a 146.5 t/s output rate and $1.25/1M tokens while offering 400k context for file and image tasks. Gemini 2.5 Pro Preview 06-05 counters with over 1M context tokens and native audio plus file integration for broader multimodal reasoning. The choice hinges on whether cost and velocity outweigh maximum length and modality range.

Gemini 2.5 Pro Preview 06-05 vs GPT-5.4 Nano: side by side

SpecGemini 2.5 Pro Preview 06-05GPT-5.4 NanoWinner
Intelligence44Tie
Output speed147 t/sTie
Output price$10.00/1M$1.25/1MGPT-5.4 Nano
Context1049K400KGemini 2.5 Pro Preview 06-05
ParamsTie
TypeProprietaryProprietaryTie
ProviderGoogleOpenAITie

Detailed analysis

Pricing

Winner: GPT-5.4 Nano

GPT-5.4 Nano costs $1.25 per million output tokens. Gemini 2.5 Pro Preview 06-05 costs $10 per million output tokens. The eight-fold price difference favors GPT-5.4 Nano for high-volume use.

Context Length

Winner: Gemini 2.5 Pro Preview 06-05

Gemini 2.5 Pro Preview 06-05 supports 1,048,576 tokens. GPT-5.4 Nano supports 400,000 tokens. The larger window enables Gemini to process substantially longer inputs effectively.

Speed

Winner: GPT-5.4 Nano

GPT-5.4 Nano is rated at 146.5 tokens per second. Gemini 2.5 Pro Preview 06-05 has no speed rating provided and notes slower responses at maximum context sizes. Available data therefore favors GPT-5.4 Nano for throughput.

Modalities

Winner: Gemini 2.5 Pro Preview 06-05

Gemini 2.5 Pro Preview 06-05 integrates text, image, audio and files. GPT-5.4 Nano handles file, image and text but lacks audio or video. Gemini therefore covers a wider multimodal range.

Gemini 2.5 Pro Preview 06-05

Pros

  • +Handles extremely long inputs effectively
  • +Strong integration of text, image, audio and files
  • +Solid performance on reasoning and coding tasks
  • +Native support for large file uploads

Cons

  • Preview release may show occasional instability
  • Slower responses with maximum context sizes
  • Less optimized for real-time voice conversations
Full Gemini 2.5 Pro Preview 06-05 review →

GPT-5.4 Nano

Pros

  • +Very large 400k token context
  • +Handles file, image, and text inputs
  • +Multimodal flexibility

Cons

  • Nano size may limit depth on complex tasks
  • No audio or video modalities
Full GPT-5.4 Nano review →

Summary: Gemini 2.5 Pro Preview 06-05 vs GPT-5.4 Nano

Select GPT-5.4 Nano when speed and low cost matter most within a 400k context. Select Gemini 2.5 Pro Preview 06-05 when maximum context length and audio support are required. Both remain proprietary models with incomplete intelligence and parameter data.

Frequently asked questions

GPT-5.4 Nano at $1.25 per million output tokens versus Gemini 2.5 Pro Preview 06-05 at $10 per million output tokens.

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