Marketing Copy A/B Testing: GPT-5.4 Pro vs Claude Sonnet 4.6 for 1M Tokens Monthly

Claude Sonnet 4.6 has been replaced by Claude Sonnet 5

The pricing shown below is for the older model and is kept for reference. If you are choosing a model today, use the current version — its rate and context window differ.

See current Claude Sonnet 5 pricing →  ·  All recent pricing changes

GPT-5.4 Pro vs Claude Sonnet 4.6
Complete Comparison: 1,000,000 input tokens × 5,000 output tokens
Comparison Mode
⚡ 20% Cached

Complete comparison of pricing, performance, and capabilities for 2 leading AI models with 20% Cached.

⚡ Caching Optimized (up to 90% savings) 📊 Batch API
Comparison Criteria GPT-5.4 Pro
OpenAI
Claude Sonnet 4.6
Anthropic
Calculation Results (Current Inputs) (20% cached)
Input Tokens 1,000,000 1,000,000
Output Tokens 5,000 5,000
Cost Breakdown
Input Cost $30.000000Worst $0.750000Best
Output Cost $0.675000 (rounded ~ $0.68)Worst $0.018750 (rounded ~ $0.02)Best
Unit Cost (Audio/OCR) $0.000000 $0.000000
Service Fees $0.000000 $0.000000
Total Cost $25.275000 (rounded ~ $25.28) Most Expensive $0.633750 (rounded ~ $0.63) Best Value
Processing Time 51 minutes, 12.61 seconds Slowest 39 minutes, 49.85 seconds Fastest
Tokens per Second 350Slowest 450Fastest
Time to First Token 250ms Worst 200ms Best
Cost per 1K tokens $0.025149 (rounded ~ $0.03)Worst $0.000631Best
Tokens per Dollar 39,763Worst Value 1,585,799Best Value
Cost per 1 Million Tokens (Informational)
Input Cost / 1M (Base) $30.000000Worst $0.750000Best
Output Cost / 1M (Base) $135.000000Worst $3.750000Best
Input Cost / 1M (Optimized) $15.000000Worst
Optimizations: 50.0% batch
$0.375000 (rounded ~ $0.38)Best
Optimizations: 50.0% batch
Output Cost / 1M (Optimized) $67.500000Worst
Optimizations: 50.0% batch
$1.875000 (rounded ~ $1.88)Best
Optimizations: 50.0% batch
Capabilities & Advanced Features
Images Support ✓ Supported ✓ Supported
Caching Support
20
✓ Supported ✓ Supported
Batch API Support ✓ Supported ✓ Supported
Tool Usage Support ✓ Supported ✓ Supported
Scroll horizontally to see all data

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Select AI Model

GPT-5.4 Pro
OpenAIMax Context: 1,024,000 tokens
$30 / $180 per 1M tokens (Standard)
State-dependent pricing active. Current tier: Standard
Use Batch API (50% discount)
20%
Provider-specific multipliers applied after all calculations
Enable for cache discounts
Select platform to enforce context limits
Number of requests (max 1M). Summary view auto-enabled >10k.

Calculate Token Costs

$24.000000 Input Cost
$0.675000 Output Cost
$0.000000 Unit Cost
$0.000000 Search Cost
$0.000000 Request Fee
$0.000000 Tool Fee
$0.000000 Code Execution
1,005,000Total Tokens
$0.025149Cost per 1K
39,763Tokens per $
🔄 Cliff Pricing Active: Using Premium pricing (premium) based on token volume.
📊 Advanced Cost Breakdown

Processing Speed

51m 12s Processing Time
350 Tokens/Second
250ms Time to First Token
327 Effective Speed

Model Comparison

Select a model to see comparisons with competitors.

Model Information

Select a model to see detailed information.

🔄 Advanced Options

⚡ Optimization
Flat fee per session (e.g., $0.03 for Code Interpreter)
Hourly storage fee for cached data
First 50 hours free, $0.05/hour after

🧠 Reasoning & Thinking
Manual thinking tokens (billed at output rate)

🔧 Special Modes
Enable 6.0x Fast Mode multiplier

📚 Research & Citations
Enable $1.00/$4.00 rates + $10.00/1k search
Enable research tier pricing
Fee per source cited

🎤 Realtime Audio & Video
Session length for billing
📊 Multiple Models Detected: This page contains data for 2 models. See the detailed comparison table above, and switch between models using tabs below.

GPT-5.4 Pro OpenAI 1024000 🏔️ Context Cliff

$25.275000 (rounded ~ $25.28)
Total Cost
⚡ 20% Cached 📊 Batch API 🔧 Tools
👁️
Vision/Images
✓ Available
🎧
Audio Processing
✗ Not Available
🎥
Video Analysis
✗ Not Available
🔧
Tool Usage
✓ Available
📄
OCR Support
✗ Not Available
📊
Batch API
✓ Available
Caching
✓ Available
90% savings

💰 Total Cost Calculation (from Plugin)

Base Cost (No Optimizations) $30.675000 (rounded ~ $30.68) Input: $30.000000
Output: $0.675000 (rounded ~ $0.68)
Optimized Cost $25.275000 (rounded ~ $25.28) Input: $30.000000
Output: $0.675000 (rounded ~ $0.68)
Unit: $0.000000
Fees: $0.000000
Total Savings $5.400000 17.6% discount

Advanced Cost Breakdown (from Plugin)

📊 Batch API
50.0% off
Asynchronous processing discount
🏔️ Context Cliff
Premium Tier
>272,000 tokens triggered premium pricing
📊 Cliff Pricing
Premium
premium pricing (threshold: 272,000)

Detailed Cost Analysis (from Plugin)

For 1,000,000 input tokens and 5,000 output tokens:

  • Input Cost: $30.000000
  • Output Cost: $0.675000 (rounded ~ $0.68)
  • Total Cost: $25.275000 (rounded ~ $25.28)
  • Cost per 1K tokens: $0.025149 (rounded ~ $0.03)
  • Tokens per dollar: 39,763 tokens
  • Context Window: 1024000 tokens

Speed & Performance Analysis

With a processing speed of 350 tokens per second and 250ms time to first token:

  • Processing Time: 51 minutes, 12.61 seconds
  • Latency: 250 milliseconds to first token
  • Base Throughput: 350 tokens/second
  • Effective Throughput: 327 tokens/second (temperature-adjusted)

Best Use Cases

GPT-5.4 Pro is best for high-compliancenuanced brand voice adherence; Claude Sonnet 4.6 is optimal for high-volumerapid creative iteration.

Want this applied to YOUR actual stack?

This calculator shows the math for GPT-5.4 Pro. Your decision needs more — current infrastructure, compliance requirements, actual workload patterns, volume tiers — that change which model is right for you.

Get a $39 personalized AI Architecture Audit. PDF tailored to your stack, delivered in under 60 seconds. 7-day no-questions-asked refund.

Get my instant AI audit — $39 →

Claude Sonnet 4.6 Anthropic 1000000

$0.633750 (rounded ~ $0.63)
Total Cost
⚠️ Bulk Calculation: Total volume exceeds single-request limit of 1,000,000 tokens. Budgeting mode active.
⚡ 20% Cached 📊 Batch API 🔧 Tools
👁️
Vision/Images
✓ Available
🎧
Audio Processing
✗ Not Available
🎥
Video Analysis
✗ Not Available
🔧
Tool Usage
✓ Available
📄
OCR Support
✗ Not Available
📊
Batch API
✓ Available
Caching
✓ Available
90% savings

💰 Total Cost Calculation (from Plugin)

Base Cost (No Optimizations) $0.768750 (rounded ~ $0.77) Input: $0.750000
Output: $0.018750 (rounded ~ $0.02)
Optimized Cost $0.633750 (rounded ~ $0.63) Input: $0.750000
Output: $0.018750 (rounded ~ $0.02)
Unit: $0.000000
Fees: $0.000000
Total Savings $0.135000 (rounded ~ $0.14) 17.6% discount

Advanced Cost Breakdown (from Plugin)

📊 Batch API
50.0% off
Asynchronous processing discount

Detailed Cost Analysis (from Plugin)

For 1,000,000 input tokens and 5,000 output tokens:

  • Input Cost: $0.750000
  • Output Cost: $0.018750 (rounded ~ $0.02)
  • Total Cost: $0.633750 (rounded ~ $0.63)
  • Cost per 1K tokens: $0.000631
  • Tokens per dollar: 1,585,799 tokens
  • Context Window: 1000000 tokens

Speed & Performance Analysis

With a processing speed of 450 tokens per second and 200ms time to first token:

  • Processing Time: 39 minutes, 49.85 seconds
  • Latency: 200 milliseconds to first token
  • Base Throughput: 450 tokens/second
  • Effective Throughput: 421 tokens/second (temperature-adjusted)

Best Use Cases

GPT-5.4 Pro is best for high-compliancenuanced brand voice adherence; Claude Sonnet 4.6 is optimal for high-volumerapid creative iteration.

Want this applied to YOUR actual stack?

This calculator shows the math for Claude Sonnet 4.6. Your decision needs more — current infrastructure, compliance requirements, actual workload patterns, volume tiers — that change which model is right for you.

Get a $39 personalized AI Architecture Audit. PDF tailored to your stack, delivered in under 60 seconds. 7-day no-questions-asked refund.

Get my instant AI audit — $39 →

✨ Market Recommendations AI Model Registry

← Back to GPT-5.4 Pro
📋 Active Input Parameters
Input Tokens: 1,000,000
Output Tokens: 5,000
Batch API: Enabled (50% discount)
Cached Tokens: 20%
Tools: Enabled
Rank AI Model & Provider Total Cost vs GPT-5.4 Pro vs Claude Sonnet 4.6
🏆 Gemini 3.5 Flash-Lite
Google
$0.064625 (rounded ~ $0.06) Best Value ↓ 99.7% cheaper ↓ 89.8% cheaper
🥈 Gemini 3.8 Flash
Google
$0.158438 (rounded ~ $0.16) ↓ 99.4% cheaper ↓ 75% cheaper
🥉 Gemini 3.6 Flash
Google
$0.316875 (rounded ~ $0.32) ↓ 98.7% cheaper ↓ 50% cheaper
#4 Gemini 2.5 Pro
Google
$1.062500 (rounded ~ $1.06) ↓ 95.8% cheaper ↑ 67.7% more
#5 GPT-5.4
OpenAI
$2.106250 (rounded ~ $2.11) ↓ 91.7% cheaper ↑ 232.3% more
#6 GPT-5.4 Thinking
OpenAI
$2.106250 (rounded ~ $2.11) ↓ 91.7% cheaper ↑ 232.3% more
#7 GPT-5.4 Thinking
OpenAI
$2.106250 (rounded ~ $2.11) ↓ 91.7% cheaper ↑ 232.3% more
🏆

Gemini 3.5 Flash-Lite
Google

$0.064625 (rounded ~ $0.06)
vs GPT-5.4 Pro: ↓ 99.7%
vs Claude Sonnet 4.6: ↓ 89.8%
🥈

Gemini 3.8 Flash
Google

$0.158438 (rounded ~ $0.16)
vs GPT-5.4 Pro: ↓ 99.4%
vs Claude Sonnet 4.6: ↓ 75%
🥉

Gemini 3.6 Flash
Google

$0.316875 (rounded ~ $0.32)
vs GPT-5.4 Pro: ↓ 98.7%
vs Claude Sonnet 4.6: ↓ 50%
#4

Gemini 2.5 Pro
Google

$1.062500 (rounded ~ $1.06)
vs GPT-5.4 Pro: ↓ 95.8%
vs Claude Sonnet 4.6: ↑ 67.7%
#5

GPT-5.4
OpenAI

$2.106250 (rounded ~ $2.11)
vs GPT-5.4 Pro: ↓ 91.7%
vs Claude Sonnet 4.6: ↑ 232.3%
#6

GPT-5.4 Thinking
OpenAI

$2.106250 (rounded ~ $2.11)
vs GPT-5.4 Pro: ↓ 91.7%
vs Claude Sonnet 4.6: ↑ 232.3%
#7

GPT-5.4 Thinking
OpenAI

$2.106250 (rounded ~ $2.11)
vs GPT-5.4 Pro: ↓ 91.7%
vs Claude Sonnet 4.6: ↑ 232.3%
✨ How recommendations work (v8.6.0): We scan all active models in the registry and only include those that support ALL your current inputs. For token-based models, we check if they can handle your token counts. For special pricing models (OCR, video, audio), we verify they have the correct pricing structure. Features marked requested were in your inputs but not supported by that model. Now using official provider pricing without reseller markups.

Choosing the Right Engine for Marketing Experimentation

For financial analysts and marketing operations leads, the choice between GPT-5.4 Pro and Claude Sonnet 4.6 often comes down to the balance between high-fidelity reasoning and cost-effective iteration. When scaling A/B testing to 1M tokens monthly, these two models present different operational profiles.

GPT-5.4 Pro stands out for its deep reasoning capabilities. In marketing contexts, this translates to an ability to adhere strictly to complex brand voice guidelines and multi-step creative briefs. If your A/B testing requires the model to understand nuance, adhere to strict regulatory compliance, or follow specific persona constraints, it provides a level of architectural reliability that is hard to match. It is the preferred choice when the cost of a ‘hallucination’ or off-brand generation is high.

Conversely, Claude Sonnet 4.6 is engineered for high-throughput creative iteration. It excels in scenarios where the goal is rapid generation of diverse ad variations or email subject lines. Its latency profile and ability to handle structured outputs make it ideal for pipelines that require constant, high-volume testing of landing page copy or social media hooks. While it may require more robust prompt engineering to maintain brand voice consistency compared to its counterpart, its efficiency in generating large batches of creative copy makes it a workhorse for teams focused on optimizing click-through rates at scale. For high-volume marketing automation, the choice hinges on whether your priority is creative precision or rapid, iterative experimentation.

Frequently Asked Questions

How accurate are these AI model cost calculations?
Our calculations are based on official pricing from each provider (Google, OpenAI, Anthropic, Meta, xAI, Perplexity, DeepSeek, Mistral) and are updated regularly. We account for all factors including multimodal inputs, caching discounts, batch API pricing, tool usage multipliers, OCR processing, audio minutes, silence fees, and research mode pricing. Note: Reseller markups and dedicated instance multipliers have been removed to reflect official provider pricing.
How does prompt caching work?
Caching discounts vary by provider: Google and OpenAI offer 90% discounts on cached input tokens. Anthropic uses write (1.25x) and read (0.10x) multipliers. Savings are applied to the token portion only, not unit-based fees.
How do Market Recommendations work (v8.6.0)?
Our recommendation engine scans the entire model registry and only includes models that support ALL your current input parameters (tokens, images, video, audio, OCR, tools, batch API, etc.). It calculates exact costs with your settings and sorts by price, showing you the best value options that can handle your complete workflow. Special pricing models (OCR, video, audio, image generation) are properly handled and only appear when their specific input types are requested. v8.6.0 removes reseller markups (20% buffer) and dedicated instance multipliers to reflect official provider pricing.
What is the YemHub AI Calculator Tool?
The YemHub AI Calculator is the most comprehensive tool for estimating costs and comparing performance metrics across 50+ AI models. It calculates token-based pricing, analyzes multimodal processing, accounts for state-dependent pricing (context cliffs, tiered tunnels), provides optimization recommendations, and now offers intelligent market matching to find the best alternatives for your specific needs.