Head-to-Head API Cost Benchmark

GPT-4o vs Perplexity Sonar Pro: API Price & Latency Comparison

On a standard B2B production workload (5,000 req/day), GPT-4o is 35.6% cheaper ($1303.12/mo vs $2025.00/mo), while GPT-4o leads in token generation speed (85 tok/s).

Side-by-Side Specification & Billing Matrix

Metric GPT-4o (OpenAI) Perplexity Sonar Pro (Perplexity Sonar API) Advantage
Standard Input / 1M Tokens $2.500 $3.000 GPT-4o
Cached Input / 1M Tokens $1.250 $3.000 GPT-4o
Output Generation / 1M Tokens $10.00 $15.00 GPT-4o
Intelligence / Benchmark Quality 1286 LMSYS Elo 1260 LMSYS Elo GPT-4o
Monthly Spend (5k req/day, 50% cache) $1303.12 / mo $2025.00 / mo GPT-4o (-35.6%)
Context Window 128,000 tokens 200,000 tokens Perplexity Sonar Pro
Output Speed (Throughput) 85 tokens/sec 75 tokens/sec GPT-4o
Batch API Discount -50% (OpenAI) -0% (Perplexity Sonar API) OpenAI
Primary Workload Fit Complex multi-step customer facing workflows, vision + JSON structured outputs Market research agents, citation-backed fact checking, B2B company enrichment Workload Dependent
Deploy / Console Access Try GPT-4o → Try Perplexity Sonar Pro → Open Full Simulator