| Signal | GPT-5 Codex | Delta | o3 |
|---|---|---|---|
Capabilities | 71 | -14 | |
Context window size | 89 | +5 | |
Output Capacity | 85 | +2 | |
Pricing Tier | 10 | +2 | |
Recency | 100 | +26 | |
Versatility | 50 | -17 | |
| Overall Result | 4 wins | of 6 | 2 wins |
8
days ranked higher
5
days
17
days ranked higher
OpenAI
OpenAI
o3 saves you $25.00/month
That's $300.00/year compared to GPT-5 Codex at your current usage level of 100K calls/month.
| Metric | GPT-5 Codex | o3 | Winner |
|---|---|---|---|
| Overall Score | 62 | 62 | -- |
| Rank | #43 | #44 | GPT-5 Codex |
| Quality Rank | #43 | #44 | GPT-5 Codex |
| Adoption Rank | #43 | #44 | GPT-5 Codex |
| Parameters | -- | -- | -- |
| Context Window | 400K | 200K | GPT-5 Codex |
| Pricing | $1.25/$10.00/M | $2.00/$8.00/M | -- |
| Signal Scores | |||
| Capabilities | 71 | 86 | o3 |
| Context window size | 89 | 84 | GPT-5 Codex |
| Output Capacity | 85 | 83 | GPT-5 Codex |
| Pricing Tier | 10 | 8 | GPT-5 Codex |
| Recency | 100 | 74 | GPT-5 Codex |
| Versatility | 50 | 67 | o3 |
GPT-5 Codex and o3 are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
GPT-5 Codex
Marginally better benchmark scores; both are excellent
Best for Cost
o3
11% lower pricing; better value at scale
Best for Reliability
GPT-5 Codex
Higher uptime and faster response speeds
Best for Prototyping
GPT-5 Codex
Stronger community support and better developer experience
Best for Production
GPT-5 Codex
Wider enterprise adoption and proven at scale
by OpenAI
Both models score similarly (62). The best choice depends on your specific use case, budget, and requirements.
GPT-5 Codex is ranked #43 and o3 is ranked #44. Rankings are based on a composite score from multiple signals including benchmarks, community sentiment, and adoption metrics.
Compare the detailed pricing breakdown above to see which model offers better value for your usage pattern.