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Claude Sonnet 5 (batch) vs GPT-5 Nano

vs
GPT-5 Nano

OpenAI

47#229
Signal-by-Signal Comparison
SignalClaude Sonnet 5 (batch)DeltaGPT-5 Nano
Capabilities
100
--
100
Pricing
95
-5
100
Context window size
95
+6
89
Recency
100
+34
66
Output Capacity
85
--
85
Benchmarks
0
-48
48
Overall Result
2 wins
of 6
2 wins
It's a tie - both models win 2 signals each

Score History

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

40

current score

Leader

GPT-5 Nano

right now

GPT-5 Nano

46.9

current score

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

Claude Sonnet 5 (batch)

Anthropic

Per request$0.003500
Daily$11.67
Monthly$350.00
Annual$4200.00

GPT-5 Nano

OpenAI

Best Value
Per request$0.000250
Daily$0.83
Monthly$25.00
Annual$300.00

GPT-5 Nano saves you $325.00/month

That's $3900.00/year compared to Claude Sonnet 5 (batch) at your current usage level of 100K calls/month.

93% cheaper
Choose GPT-5 Nano for cost optimization

Claude Sonnet 5 (batch) pricing:
Input:$1.00/M tokens
Output:$5.00/M tokens
GPT-5 Nano pricing:
Input:$0.05/M tokens
Output:$0.40/M tokens
Claude Sonnet 5 (batch)

Anthropic

40

Composite Score

Winner
GPT-5 Nano

OpenAI

47

Composite Score

Signal-by-Signal Comparison
MetricClaude Sonnet 5 (batch)GPT-5 NanoWinner
Overall Score
40
47
GPT-5 Nano
Rank#251#229
GPT-5 Nano
Quality Rank#251#229
GPT-5 Nano
Adoption Rank#251#229
GPT-5 Nano
Parameters------
Context Window1000K400K
Claude Sonnet 5 (batch)
Pricing$1.00/$5.00/M$0.05/$0.40/M--
Signal Scores
Capabilities
100
100
Claude Sonnet 5 (batch)
Pricing
95
100
GPT-5 Nano
Context window size
95
89
Claude Sonnet 5 (batch)
Recency
100
66
Claude Sonnet 5 (batch)
Output Capacity
85
85
Claude Sonnet 5 (batch)
Benchmarks--
48
GPT-5 Nano
Benchmark Head-to-Head(2 benchmarks)
Claude Sonnet: 0GPT-5 Nano: 0
Claude Sonnet
GPT-5 Nano
Normalized 0-100%
SWE-bench Verified
-34.8%
Arena Elo
-1337
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 5 (batch)Entry Level

Scores 40/100 (rank #251), placing it in the top 14% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
GPT-5 NanoEntry Level

Scores 47/100 (rank #229), placing it in the top 21% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

GPT-5 Nano has a 7-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 (batch) 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 Nano when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
Claude Sonnet 5 (batch)
Input cost$1.00/M tokens
Output cost$5.00/M tokens
Cost per quality point$0.150
Est. monthly (1M tokens/day)$90.00
GPT-5 NanoBest Value
Input cost$0.05/M tokens
Output cost$0.40/M tokens
Cost per quality point$0.010
Est. monthly (1M tokens/day)$6.75

GPT-5 Nano offers 93% better value per quality point. At 1M tokens/day, you'd spend $6.75/month with GPT-5 Nano vs $90.00/month with Claude Sonnet 5 (batch) - a $83.25 monthly difference.

Latency & Speed
Claude Sonnet 5 (batch)Faster
Speed score0/100
GPT-5 Nano
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 (batch)

Customer support chatbot

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

Claude Sonnet 5 (batch)

Long document analysis

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

Claude Sonnet 5 (batch)

Batch data extraction

Lower output pricing ($0.40/M) reduces costs when processing thousands of records daily

GPT-5 Nano

Creative writing & content

Higher overall composite score (47/100) correlates with better nuance, coherence, and style in long-form content

GPT-5 Nano

Image understanding & OCR

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

Claude Sonnet 5 (batch)
Which Should You Choose?
Our recommendation:
GPT-5 Nano

GPT-5 Nano has a moderate advantage with a 6.899999999999999-point lead in composite score. It wins on more signal dimensions, but Claude Sonnet 5 (batch) 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 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 Nano
Recommended

by OpenAI

  • Choose for Cost - 93% lower pricing; better value at scale
Capability Comparison
CapabilityClaude Sonnet 5 (batch)GPT-5 Nano
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 (batch)

Anthropic

$7.80
estimated monthly cost

GPT-5 Nano

OpenAI

Best Value
$0.5700
estimated monthly cost

GPT-5 Nano saves you $7.23/month

That's 93% cheaper than Claude Sonnet 5 (batch) 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 5 (batch)GPT-5 Nano
Context Window1M400K
Max Output Tokens128,000128,000
Open SourceNoNo
CreatedJun 30, 2026Aug 7, 2025
Last updated: 59m ago

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Claude Sonnet 5 (batch) vs GPT-5 Nano (2026) | LM Market Cap