Which model is better: Claude 3.5 Sonnet or GPT-4o Mini?

GPT-4o Mini is 95.0% cheaper for input tokens ($0.15 vs. $3.00 per 1M tokens) and $0.60 vs. $15.00 for output tokens (20.0x cost difference). In terms of operational performance, GPT-4o Mini delivers faster response latency with 220ms TTFT (90ms faster than Claude 3.5 Sonnet). Claude 3.5 Sonnet leads coding benchmarks at 49.0% SWE-bench vs. 41.0% for GPT-4o Mini.
Verified daily via automated API latency tests and official documentation.

Verified Performance & Unit Economics Delta

Daily synchronized metrics from synthetic latency endpoints and benchmark evaluations.

Metric / Dimension Claude 3.5 Sonnet GPT-4o Mini Net Delta / Advantage
Input Cost / 1M Tokens $3.00 $0.15 GPT-4o Mini is 20.0x cheaper
Output Cost / 1M Tokens $15.00 $0.60 GPT-4o Mini (96.0% lower)
Prompt Cache Read / 1M $0.300 $0.075 GPT-4o Mini is 4.0x cheaper
Prompt Cache Write / 1M $3.75 $0.15 GPT-4o Mini is 25.0x cheaper
Avg TTFT Response Latency 310ms 220ms GPT-4o Mini (+90ms faster)
SWE-bench Verified (Coding) 49% 41% Claude 3.5 Sonnet (+8.0% lead)
Inference Value Score (IVR) 47.3 / 100 70.6 / 100 GPT-4o Mini (+23.3 pts)

Interactive Monthly Token Economics & ROI Forecaster

Model your expected production workload across prompt (input) and completion (output) tokens with prompt caching economics.

Live Calculation Engine
10.0M Tokens
100K 50M 250M 500M+
2.5M Tokens
100K 10M 50M 100M+

Estimated Monthly Spend

Claude 3.5 Sonnet $67.50

$3.00/1M in · $15.00/1M out

Prompt Cache: $0.300/1M read · $3.75/1M write

GPT-4o Mini $3.00

$0.15/1M in · $0.60/1M out

Prompt Cache: $0.075/1M read · $0.15/1M write

Projected Monthly Cost Reduction
$64.50 / mo
(95.6% lower cost with GPT-4o Mini)
A

When to Choose Claude 3.5 Sonnet

Choose Claude 3.5 Sonnet when you need Industry benchmark for complex software engineering, intricate reasoning, and human-like prose composition. and have an infrastructure budget aligned with $3.00/1M tokens.

B

When to Choose GPT-4o Mini

Choose GPT-4o Mini when you need Ultra-affordable, low-latency multimodal model optimized for high-volume customer queries, fine-tuning, and structured JSON extraction. and prioritize OpenAI ecosystem integration at $0.15/1M tokens.

Related Questions & Decision Factors

Which is cheaper: Claude 3.5 Sonnet or GPT-4o Mini?

GPT-4o Mini is cheaper at $0.15/1M input tokens compared to $3.00/1M for Claude 3.5 Sonnet.

Which model has lower latency: Claude 3.5 Sonnet or GPT-4o Mini?

GPT-4o Mini delivers faster response times with an average TTFT of 220ms vs 310ms for Claude 3.5 Sonnet.

When should you choose Claude 3.5 Sonnet?

Choose Claude 3.5 Sonnet when you need Industry benchmark for complex software engineering, intricate reasoning, and human-like prose composition. and have an infrastructure budget aligned with $3.00/1M tokens.

When should you choose GPT-4o Mini?

Choose GPT-4o Mini when you need Ultra-affordable, low-latency multimodal model optimized for high-volume customer queries, fine-tuning, and structured JSON extraction. and prioritize OpenAI ecosystem integration at $0.15/1M tokens.

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