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Claude Sonnet 4 vs GPT-4o

Claude Sonnet 4

Anthropic

74#128
vs
GPT-4o

OpenAI

71#157
Signal-by-Signal Comparison
SignalClaude Sonnet 4DeltaGPT-4o
Capabilities
83
+17
67
Benchmarks
75
+1
74
Pricing
85
-5
90
Context window size
95
+14
81
Recency
52
+52
0
Output Capacity
80
+10
70
Overall Result
5 wins
of 6
1 wins
Claude Sonnet 4 wins 5 of 6 signals

Score History

Score History (25 data points)
Claude Sonnet 4GPT-4o
Claude Sonnet 4

74.4

current score

Leader

Claude Sonnet 4

right now

GPT-4o

71.2

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Claude Sonnet 4

Anthropic

Per request$0.010500
Daily$35.00
Monthly$1050.00
Annual$12600.00

GPT-4o

OpenAI

Best Value
Per request$0.007500
Daily$25.00
Monthly$750.00
Annual$9000.00

GPT-4o saves you $300.00/month

That's $3600.00/year compared to Claude Sonnet 4 at your current usage level of 100K calls/month.

29% cheaper
Choose GPT-4o for cost optimization

Claude Sonnet 4 pricing:
Input:$3.00/M tokens
Output:$15.00/M tokens
GPT-4o pricing:
Input:$2.50/M tokens
Output:$10.00/M tokens
Winner
Claude Sonnet 4

Anthropic

74

Composite Score

GPT-4o

OpenAI

71

Composite Score

Signal-by-Signal Comparison
MetricClaude Sonnet 4GPT-4oWinner
Overall Score
74
71
Claude Sonnet 4
Rank#128#157
Claude Sonnet 4
Quality Rank#128#157
Claude Sonnet 4
Adoption Rank#128#157
Claude Sonnet 4
Parameters------
Context Window1000K128K
Claude Sonnet 4
Pricing$3.00/$15.00/M$2.50/$10.00/M--
Signal Scores
Capabilities
83
67
Claude Sonnet 4
Benchmarks
75
74
Claude Sonnet 4
Pricing
85
90
GPT-4o
Context window size
95
81
Claude Sonnet 4
Recency
52
0
Claude Sonnet 4
Output Capacity
80
70
Claude Sonnet 4
Benchmark Head-to-Head(17 benchmarks)
Claude Sonnet: 10GPT-4o: 1
Claude Sonnet
GPT-4o
Normalized 0-100%
MMLU
89.5%88.7%
MMLU-Pro
83.7%72.6%
GPQA Diamond
75.4%53.6%
MATH-500
81.4%76.6%
HumanEval
93.8%90.2%
SWE-bench Verified
72.7%30.8%
AIME 2024
58%-
GSM8K
-95.8%
IFEval
90.8%84.3%
BBH
87%83.7%
ARC-Challenge
-96.4%
HellaSwag
-95.3%
Arena Elo
13871286
LiveBench
67%64.3%
HLE
5.52%-
BigCodeBench
32.4%51.1%
SimpleQA
-38.2%
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

Claude Sonnet 4Strong Performer

Scores 74/100 (rank #128), placing it in the top 56% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-4oStrong Performer

Scores 71/100 (rank #157), placing it in the top 46% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 3-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.

When to Use Each Model

Choose Claude Sonnet 4 when you need:

  • Processing long documents or large codebases (1000K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose GPT-4o when you need:

  • High-volume production workloads where API costs must be minimized
Cost-Performance Analysis
Claude Sonnet 4
Input cost$3.00/M tokens
Output cost$15.00/M tokens
Cost per quality point$0.242
Est. monthly (1M tokens/day)$270.00
GPT-4oBest Value
Input cost$2.50/M tokens
Output cost$10.00/M tokens
Cost per quality point$0.176
Est. monthly (1M tokens/day)$187.50

GPT-4o offers 31% better value per quality point. At 1M tokens/day, you'd spend $187.50/month with GPT-4o vs $270.00/month with Claude Sonnet 4 - a $82.50 monthly difference.

Latency & Speed
Claude Sonnet 4Faster
Speed score0/100
GPT-4o
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Claude Sonnet 4

Customer support chatbot

Suitable for user-facing chat with competitive response times. GPT-4o also offers lower per-token costs for high-volume support

Claude Sonnet 4

Long document analysis

Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass

Claude Sonnet 4

Batch data extraction

Lower output pricing ($10.00/M) reduces costs when processing thousands of records daily

GPT-4o

Creative writing & content

Higher overall composite score (74/100) correlates with better nuance, coherence, and style in long-form content

Claude Sonnet 4

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Claude Sonnet 4
Which Should You Choose?
Our recommendation:
Claude Sonnet 4

Claude Sonnet 4 has a moderate advantage with a 3.200000000000003-point lead in composite score. It wins on more signal dimensions, but GPT-4o has specific strengths that could make it the better choice for certain workflows.

Claude Sonnet 4
Recommended

by Anthropic

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by OpenAI

  • Choose for Cost - 31% lower pricing; better value at scale
Capability Comparison
CapabilityClaude Sonnet 4GPT-4o
Vision (Image Input)
Function Calling
Streaming
JSON Modediffers
Reasoningdiffers
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Claude Sonnet 4

Anthropic

$23.40
estimated monthly cost

GPT-4o

OpenAI

Best Value
$16.50
estimated monthly cost

GPT-4o saves you $6.90/month

That's 29% cheaper than Claude Sonnet 4 at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterClaude Sonnet 4GPT-4o
Context Window1M128K
Max Output Tokens64,00016,384
Open SourceNoNo
CreatedMay 22, 2025May 13, 2024
Last updated: 25m ago

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