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Model Comparison

Comprehensive comparison of all available Einstein AI models to help you choose the right one for your use case, balancing quality, speed, cost, and environmental impact.

Quick Comparison by Use Case​

🏆 Best for Quality (Complex Tasks)​

ModelProviderCost/1kCO₂/1kWater/1kRatingBest For
GPT-5Azure$0.02013.78g17.69LDMost complex reasoning
GPT-4.1Azure$0.0120.56g0.44LA+Complex analysis
Claude Sonnet 4.5AWS$0.0181.20g0.63LAResearch, writing
Gemini 2.5 ProGoogle$0.0101.54g1.84LAMultimodal tasks

⚡ Best for Speed & Volume​

ModelProviderCost/1kCO₂/1kWater/1kRatingBest For
Claude 3 HaikuAWS$0.00080.64g0.34LA+High-volume simple tasks
Amazon Nova LiteAWS$0.00050.10g0.07LA+Cost-sensitive apps
Gemini 2.0 Flash LiteGoogle$0.00070.12g0.15LA+Real-time responses

🎯 Best Overall Balance​

ModelProviderCost/1kCO₂/1kWater/1kRatingBest For
GPT-4o MiniAzure$0.00150.64g0.46LA+General purpose
GPT-4.1 MiniAzure$0.0020.59g0.46LA+Production workloads
Gemini 2.5 FlashGoogle$0.00250.56g0.66LA+Content generation
Claude Haiku 4.5AWS$0.0010.78g0.41LA+Fast Q&A

Complete Model Reference​

OpenAI/Azure Models​

GPT-5​

The most advanced OpenAI model with exceptional reasoning capabilities.

MetricValue
Parameters~2,000B
Cost per 1k tokens$0.020
CO₂ per 1k tokens13.78g
Water per 1k tokens17.69L
Sustainability RatingD
Best ForComplex reasoning, code generation, highest accuracy tasks

When to Use:

  • Tasks where quality is paramount
  • Complex multi-step reasoning
  • Code review and generation
  • Legal or medical content analysis

When NOT to Use:

  • Simple classification tasks (overkill)
  • High-volume applications (cost prohibitive)
  • Sustainability-focused deployments

GPT-5 Mini​

Faster, more efficient version of GPT-5.

MetricValue
Parameters~100B
Cost per 1k tokens$0.005
CO₂ per 1k tokens7.75g
Water per 1k tokens6.10L
Sustainability RatingB
Best ForGPT-5 quality at lower cost

GPT-4.1​

Advanced reasoning with excellent sustainability.

MetricValue
Parameters~1,800B
Cost per 1k tokens$0.012
CO₂ per 1k tokens0.56g
Water per 1k tokens0.44L
Sustainability RatingA+
Best ForComplex analysis with sustainability priority

Why Choose GPT-4.1:

  • Near GPT-5 quality
  • 96% lower CO₂ than GPT-5
  • Excellent for production workloads

GPT-4.1 Mini​

The sweet spot for most production workloads.

MetricValue
Parameters~100B
Cost per 1k tokens$0.002
CO₂ per 1k tokens0.59g
Water per 1k tokens0.46L
Sustainability RatingA+
Best ForGeneral-purpose production tasks

GPT-4o​

Multimodal model with strong all-around performance.

MetricValue
Parameters~1,700B
Cost per 1k tokens$0.010
CO₂ per 1k tokens1.17g
Water per 1k tokens0.88L
Sustainability RatingA
Best ForMultimodal tasks (text + images), creative content

GPT-4o Mini ⭐ Recommended Default​

The most popular choice for balanced performance.

MetricValue
Parameters~100B
Cost per 1k tokens$0.0015
CO₂ per 1k tokens0.64g
Water per 1k tokens0.46L
Sustainability RatingA+
Best ForDefault choice for most applications

Why GPT-4o Mini is the Default:

  • Excellent quality-to-cost ratio
  • Fast response times (1-2s)
  • Low environmental impact
  • Handles 80% of use cases well

O3 (Beta)​

Specialized reasoning model.

MetricValue
Parameters~2,000B
Cost per 1k tokens$0.006
CO₂ per 1k tokens0.99g
Water per 1k tokens0.78L
Sustainability RatingA
Best ForMathematical reasoning, logical analysis

O4 Mini (Beta)​

Compact reasoning model.

MetricValue
Parameters~100B
Cost per 1k tokens$0.002
CO₂ per 1k tokens5.13g
Water per 1k tokens4.04L
Sustainability RatingB
Best ForLightweight reasoning tasks

Anthropic/AWS Models​

Claude Sonnet 4.5 (Beta)​

Anthropic's latest flagship model.

MetricValue
Parameters~200B
Cost per 1k tokens$0.018
CO₂ per 1k tokens1.20g
Water per 1k tokens0.63L
Sustainability RatingA
Best ForResearch, long-form content, nuanced analysis

Claude Sonnet 4​

Powerful reasoning with strong sustainability.

MetricValue
Parameters~200B
Cost per 1k tokens$0.018
CO₂ per 1k tokens1.18g
Water per 1k tokens0.62L
Sustainability RatingA
Best ForDocument analysis, complex Q&A

Claude 3.7 Sonnet​

Balanced performance for production.

MetricValue
Parameters~200B
Cost per 1k tokens$0.015
CO₂ per 1k tokens1.18g
Water per 1k tokens0.62L
Sustainability RatingA
Best ForGeneral production workloads

Claude Haiku 4.5 (Beta)​

Fast and efficient.

MetricValue
Parameters~50B
Cost per 1k tokens$0.001
CO₂ per 1k tokens0.78g
Water per 1k tokens0.41L
Sustainability RatingA+
Best ForReal-time applications, high throughput

Claude 3 Haiku ⭐ Best for High Volume​

Fastest Claude model, excellent for scale.

MetricValue
Parameters~50B
Cost per 1k tokens$0.0008
CO₂ per 1k tokens0.64g
Water per 1k tokens0.34L
Sustainability RatingA+
Best ForSimple classification, chatbots, high-volume tasks

Google/Vertex AI Models​

Gemini 2.5 Pro​

Google's most capable model.

MetricValue
Parameters~1,000B
Cost per 1k tokens$0.010
CO₂ per 1k tokens1.54g
Water per 1k tokens1.84L
Sustainability RatingA
Best ForMultimodal, research, advanced use cases

Gemini 2.5 Flash​

Fast and efficient for general use.

MetricValue
Parameters~100B
Cost per 1k tokens$0.0025
CO₂ per 1k tokens0.56g
Water per 1k tokens0.66L
Sustainability RatingA+
Best ForContent generation, real-time apps

Gemini 2.5 Flash Lite​

Lightweight option.

MetricValue
Parameters~10B
Cost per 1k tokens$0.0008
CO₂ per 1k tokens0.15g
Water per 1k tokens0.18L
Sustainability RatingA+
Best ForSimple tasks, cost-sensitive apps

Gemini 2.0 Flash​

Previous generation, still excellent.

MetricValue
Parameters~100B
Cost per 1k tokens$0.002
CO₂ per 1k tokens0.45g
Water per 1k tokens0.54L
Sustainability RatingA+
Best ForStable production workloads

Gemini 2.0 Flash Lite ⭐ Most Sustainable​

Lowest environmental impact.

MetricValue
Parameters~10B
Cost per 1k tokens$0.0007
CO₂ per 1k tokens0.12g
Water per 1k tokens0.15L
Sustainability RatingA+
Best ForHigh-volume, sustainability-focused apps

Amazon/AWS Models​

Amazon Nova Pro​

Enterprise-grade Amazon model.

MetricValue
Parameters~100B
Cost per 1k tokens$0.003
CO₂ per 1k tokens0.50g
Water per 1k tokens0.35L
Sustainability RatingA+
Best ForAWS-native applications, enterprise workloads

Amazon Nova Lite ⭐ Lowest Cost​

Most cost-effective option.

MetricValue
Parameters~10B
Cost per 1k tokens$0.0005
CO₂ per 1k tokens0.10g
Water per 1k tokens0.07L
Sustainability RatingA+
Best ForExtreme cost optimization, simple tasks

Decision Framework​

By Priority​

Quality First:

GPT-5 > GPT-4.1 > Claude Sonnet 4.5 > Gemini 2.5 Pro > GPT-4o

Cost First:

Amazon Nova Lite > Gemini 2.0 Flash Lite > Claude 3 Haiku > GPT-4o Mini

Sustainability First:

Amazon Nova Lite > Gemini 2.0 Flash Lite > Gemini 2.5 Flash Lite > GPT-4.1 > GPT-4o Mini

Speed First:

Claude 3 Haiku > Amazon Nova Lite > Gemini Flash Lite > GPT-4o Mini

Route requests based on complexity:

function selectModel(request) {
  if (isComplex(request)) {
    return "GPT-4.1";         // 10% of requests
  } else if (isStandard(request)) {
    return "GPT-4o-Mini";     // 60% of requests
  } else {
    return "Claude-3-Haiku"; // 30% of requests
  }
}

Results:

  • Average cost per request: ~$0.002 (vs $0.020 with GPT-5 only)
  • 90% cost savings
  • 95% CO₂ reduction vs using GPT-5 for all requests
  • Quality maintained where needed

Cost & Sustainability Calculator​

10,000 Requests/Month (500 tokens avg)​

ModelMonthly CostMonthly CO₂Monthly Water
GPT-5$10068.9 kg88.4 L
GPT-4.1$602.8 kg2.2 L
GPT-4o Mini$7.503.2 kg2.3 L
Claude 3 Haiku$43.2 kg1.7 L
Amazon Nova Lite$2.500.5 kg0.35 L

Potential Savings (vs GPT-5 only):

  • GPT-4o Mini: $92.50/month saved + 65.7 kg CO₂ avoided
  • Amazon Nova Lite: $97.50/month saved + 68.4 kg CO₂ avoided

Choose the right model for each task to balance quality, speed, cost, and sustainability effectively.