Compare / head-to-head
o3vsPhi-4 Reasoning
o3 leads 2 of 2 shared benchmarks. o3 has the larger context window (200K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
2 – 0
o3 leads
Cheaper per token
—
list price, input + output
Larger context
o3
200K tokens
Provider uptime (30d)
94.2446% · —
OpenAI · Microsoft
o3
OpenAI · released 2025-04-16
textvision
Phi-4 Reasoning
Microsoft · released 2025-04-30
text
- Context
- 33K
- Max out
- 33K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 4 · 4 core
Quality
Benchmark matrix
2 shared · 5 only o3 · 2 only Phi-4 Reasoning| Benchmark | o3 | Phi-4 Reasoning | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 2 | ||||
| GPQA Diamond | 81.8% ↗epoch | 65.8% ↗ | +16 pt | o3 |
| AIME 2025 | 89.2% ↗matharena ⚠ | 62.9% ↗ | +26.3 pt | o3 |
| Only o3 reports · 5 | ||||
| SWE-bench Verified | 69.1% ↗ | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 33.3% ↗epoch | not reported | — | — |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 84.4% ↗epoch | not reported | — | — |
| SimpleQA Verified | 49.4% ↗epoch | not reported | — | — |
| SWE-bench Verified (Epoch AI run) | 62.3% ↗epoch | not reported | — | — |
| Only Phi-4 Reasoning reports · 2 | ||||
| MMLU-Pro | not reported | 74.3% ↗ | — | — |
| HumanEval+ | not reported | 92.9% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is o3 minus Phi-4 Reasoning in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | o3 | Phi-4 Reasoning | Edge |
|---|---|---|---|
| Context window | 200K tokens | 33K tokens | o3 |
| Max output | 100K tokens | 33K tokens | o3 |
| Input price / 1M | $2 ↗ | — | — |
| Output price / 1M | $8 ↗ | — | — |
| Cached input / 1M | $0.5 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $10 | — | — |
| Modalities | text · vision | text | o3 |
| Released | 2025-04-16 | 2025-04-30 | — |
| Cited benchmark scores | 7 | 4 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
o3 vs …
Models sharing the most benchmarksMore matchups
Phi-4 Reasoning vs …
Models sharing the most benchmarksBuilt by Respan
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