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GPT-5 (high) vs o3: The Ultimate Performance & Pricing Comparison

Deep dive into reasoning, benchmarks, and latency insights.

The Final Verdict in the GPT-5 (high) vs o3 Showdown

o3 takes this matchup on raw intelligence and reasoning. Pick GPT-5 (high) when faster response times and cost-efficiency matters more.

Model Snapshot

Key decision metrics at a glance.

GPT-5 (high)o3
9.0
Reasoning
9.0
4.0
Coding
6.0
3.0
Multimodal
3.0
4.0
Long Context
4.0
$0.003
Blended Price / 1M tokens
$0.004
1000ms
P95 Latency
1000ms
Tokens per second
128

Data provided by artificialanalysis.ai

Overall Capabilities

This radar chart visually maps the core capabilities (reasoning, coding, math proxy, multimodal, long context) of `GPT-5 (high)` vs `o3`.

IntelligenceCodingMathMultimodalLong Context
GPT-5 (high)o3

Benchmark Breakdown

This grouped bar chart provides a side-by-side comparison for each benchmark metric.

GPT-5 (high)o3

Speed & Latency

Lower time to first token is better; higher tokens per second is better.

Time to First Token · GPT-5 (high)
300ms
Time to First Token · o3
300ms
Tokens per Second · GPT-5 (high)
49
Tokens per Second · o3
128.056
Head to the playground to validate these results yourself

The Economics of GPT-5 (high) vs o3

Pricing Breakdown

Compare input and output pricing at a glance.

GPT-5 (high)o3

Real-World Cost Scenario

Per run: 1M input tokens + 250k output tokens

GPT-5 (high)$0.004

o3$0.004

GPT-5 (high) costs $0.000 less per run

Review the complete pricing and packaging strategy

Which Model Wins the GPT-5 (high) vs o3 Battle for You?

Choose GPT-5 (high) if...

  • Cheaper input ($0.00 vs $0.00)

Choose o3 if...

  • Cheaper output ($0.01 vs $0.01)
  • Stronger coding (6.0 vs 4.0)

Your Questions about the GPT-5 (high) vs o3 Comparison

Is `GPT-5 (high)` a direct replacement for `o3`?

Based on our GPT-5 (high) vs o3 analysis, they serve different niches. GPT-5 (high) is positioned as a more powerful option, but o3's distinct advantages in areas like speed or cost ensure it remains relevant.

For coding, which is better in the `GPT-5 (high) vs o3` debate?

The benchmark data in our GPT-5 (high) vs o3 comparison shows o3 has a clear advantage, scoring 60 on LiveCodeBench versus 40.

How was this `GPT-5 (high) vs o3` comparison conducted?

Our GPT-5 (high) vs o3 comparison uses standardized benchmark data and pricing information directly from the model creators to ensure objectivity and accuracy.