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Claude Sonnet 5 vs GPT-5.2

Claude Sonnet 5

Anthropic

85#44
vs
GPT-5.2

OpenAI

91#19
Signal-by-Signal Comparison
SignalClaude Sonnet 5DeltaGPT-5.2
Capabilities
100
--
100
Pricing
90
+4
86
Context window size
95
+6
89
Recency
100
+9
91
Output Capacity
85
--
85
Benchmarks
0
-89
89
Overall Result
3 wins
of 6
1 wins
Claude Sonnet 5 wins 3 of 6 signals

Score History

Score History (24 data points)
Claude Sonnet 5GPT-5.2
Claude Sonnet 5

85.2

current score

Leader

GPT-5.2

right now

GPT-5.2

90.5

current score

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

Claude Sonnet 5

Anthropic

Best Value
Per request$0.007000
Daily$23.33
Monthly$700.00
Annual$8400.00

GPT-5.2

OpenAI

Per request$0.008750
Daily$29.17
Monthly$875.00
Annual$10500.00

Claude Sonnet 5 saves you $175.00/month

That's $2100.00/year compared to GPT-5.2 at your current usage level of 100K calls/month.

20% cheaper
Choose Claude Sonnet 5 for cost optimization

Claude Sonnet 5 pricing:
Input:$2.00/M tokens
Output:$10.00/M tokens
GPT-5.2 pricing:
Input:$1.75/M tokens
Output:$14.00/M tokens
Claude Sonnet 5

Anthropic

85

Composite Score

Winner
GPT-5.2

OpenAI

91

Composite Score

Signal-by-Signal Comparison
MetricClaude Sonnet 5GPT-5.2Winner
Overall Score
85
91
GPT-5.2
Rank#44#19
GPT-5.2
Quality Rank#44#19
GPT-5.2
Adoption Rank#44#19
GPT-5.2
Parameters------
Context Window1000K400K
Claude Sonnet 5
Pricing$2.00/$10.00/M$1.75/$14.00/M--
Signal Scores
Capabilities
100
100
Claude Sonnet 5
Pricing
90
86
Claude Sonnet 5
Context window size
95
89
Claude Sonnet 5
Recency
100
91
Claude Sonnet 5
Output Capacity
85
85
Claude Sonnet 5
Benchmarks--
89
GPT-5.2
Benchmark Head-to-Head(11 benchmarks)
Claude Sonnet: 0GPT-5.2: 0
Claude Sonnet
GPT-5.2
Normalized 0-100%
MMLU
-93.5%
MMLU-Pro
-86%
GPQA Diamond
-87%
MATH-500
-94%
HumanEval
-97%
SWE-bench Verified
-78%
IFEval
-93%
BBH
-91.5%
Arena Elo
-1481
LiveBench
-77.5%
HLE
-37%
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 5Elite Tier

Scores 85/100 (rank #44), placing it in the top 85% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-5.2Elite Tier

Scores 91/100 (rank #19), placing it in the top 94% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5.2 has a 5-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Claude Sonnet 5 when you need:

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

Choose GPT-5.2 when you need:

  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Claude Sonnet 5Best Value
Input cost$2.00/M tokens
Output cost$10.00/M tokens
Cost per quality point$0.141
Est. monthly (1M tokens/day)$180.00
GPT-5.2
Input cost$1.75/M tokens
Output cost$14.00/M tokens
Cost per quality point$0.174
Est. monthly (1M tokens/day)$236.25

Claude Sonnet 5 offers 24% better value per quality point. At 1M tokens/day, you'd spend $180.00/month with Claude Sonnet 5 vs $236.25/month with GPT-5.2 - a $56.25 monthly difference.

Latency & Speed
Claude Sonnet 5Faster
Speed score0/100
GPT-5.2
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 5

Customer support chatbot

Suitable for user-facing chat with competitive response times. Claude Sonnet 5 also offers lower per-token costs for high-volume support

Claude Sonnet 5

Long document analysis

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

Claude Sonnet 5

Batch data extraction

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

Claude Sonnet 5

Creative writing & content

Higher overall composite score (91/100) correlates with better nuance, coherence, and style in long-form content

GPT-5.2

Image understanding & OCR

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

Claude Sonnet 5
Which Should You Choose?
Our recommendation:
GPT-5.2

GPT-5.2 has a moderate advantage with a 5.299999999999997-point lead in composite score. It wins on more signal dimensions, but Claude Sonnet 5 has specific strengths that could make it the better choice for certain workflows.

by Anthropic

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 24% lower pricing; better value at scale
  • 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
GPT-5.2
Recommended

by OpenAI

Consider for specialized use cases.

Capability Comparison
CapabilityClaude Sonnet 5GPT-5.2
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Claude Sonnet 5

Anthropic

Best Value
$15.60
estimated monthly cost

GPT-5.2

OpenAI

$19.95
estimated monthly cost

Claude Sonnet 5 saves you $4.35/month

That's 22% cheaper than GPT-5.2 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 5GPT-5.2
Context Window1M400K
Max Output Tokens128,000128,000
Open SourceNoNo
CreatedJun 30, 2026Dec 10, 2025
Last updated: 54m ago

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