GPT-4 isn't your only option. Here's how the major LLMs compare and when to use each.

Major LLMs Compared

ModelProviderStrengthCost
GPT-4oOpenAIGeneral purpose$$$
GPT-4o-miniOpenAIFast, affordable$
Claude 3.5 SonnetAnthropicAnalysis, long docs$$
Claude 3.5 HaikuAnthropicFast responses$
Gemini ProGoogleMultimodal, Google$$
LLaMA 3Meta (open)Self-hostedFree (hosting $$)

GPT-4 Family (OpenAI)

Best for: General business tasks, widest integration

  • GPT-4o: Most capable, handles images and text
  • GPT-4o-mini: Cheaper, faster, 80% of capability
  • o1: Complex reasoning (slower, more expensive)

Japanese: Good, sometimes awkward phrasing

Claude Family (Anthropic)

Best for: Document analysis, nuanced writing

  • Claude 3.5 Sonnet: Best for analysis, 200k context
  • Claude 3.5 Haiku: Fast, affordable
  • Safety focus: Less prone to harmful outputs

Japanese: Very natural, culturally aware

Gemini Family (Google)

Best for: Multimodal, Google integration

  • Gemini Pro: General purpose, good at images
  • Gemini Flash: Faster, cheaper
  • Google ecosystem: Docs, Sheets, etc.

Japanese: Strong, benefits from Google's Japanese data

Open-Source Models

Best for: Privacy, control, long-term cost

  • LLaMA 3: Meta's model, good all-around
  • Mistral: European, efficient
  • Qwen: Strong for Asian languages

Trade-off: Setup complexity vs. privacy and cost

Use Case Recommendations

Use CaseRecommended ModelWhy
ChatbotsGPT-4o-mini or Claude HaikuFast, affordable
Document analysisClaude 3.5 SonnetLong context
Japanese writingClaude or GeminiNatural language
Image + textGPT-4o or Gemini ProMultimodal
Private dataLLaMA 3 (hosted)No data leaves
High volumeGPT-4o-miniLow per-call cost

Cost Comparison

Per 1M tokens (approximate):

ModelInputOutput
GPT-4o$2.50$10.00
GPT-4o-mini$0.15$0.60
Claude 3.5 Sonnet$3.00$15.00
Claude 3.5 Haiku$0.25$1.25
Gemini Pro$0.50$1.50
LLaMA 3 (hosted)Hosting cost only

How to Choose

  1. Define use case: What task will AI do?
  2. Test multiple: Run same prompts through several
  3. Measure quality: Rate output for your need
  4. Consider cost: Calculate monthly usage cost
  5. Factor privacy: Where does data go?

Greene Recommendation

Most businesses start with:

  • Primary: GPT-4o-mini for cost-effective general use
  • Secondary: Claude 3.5 Sonnet for documents, Japanese
  • Special: Gemini if heavy Google integration

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