Compare / head-to-head
ERNIE 5.1vso3-pro
ERNIE 5.1 and o3-pro do not yet share a public benchmark, so quality cannot be compared apples-to-apples. o3-pro has the larger context window (200K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0
no overlap yet
Cheaper per token
—
list price, input + output
Larger context
o3-pro
200K tokens
Provider uptime (30d)
— · 95.0156%
Baidu · OpenAI
ERNIE 5.1
Baidu · released 2026-05-09
text
- Context
- 128K
- Max out
- 66K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 2 · 2 core
Quality
Benchmark matrix
0 shared · 2 only ERNIE 5.1 · 0 only o3-pro| Benchmark | ERNIE 5.1 | o3-pro | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 0 | ||||
| No public benchmark is reported for both models yet. | ||||
| Only ERNIE 5.1 reports · 2 | ||||
| LMArena Elo | 1468.2 ↗ | not reported | — | — |
| AIME 2026 (with tools) | 99.6% ↗ | not reported | — | — |
| Only o3-pro reports · 0 | ||||
| o3-pro reports nothing ERNIE 5.1 does not. | ||||
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 ERNIE 5.1 minus o3-pro 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 | ERNIE 5.1 | o3-pro | Edge |
|---|---|---|---|
| Context window | 128K tokens | 200K tokens | o3-pro |
| Max output | 66K tokens | 100K tokens | o3-pro |
| Input price / 1M | — | $20 ↗ | — |
| Output price / 1M | — | $80 ↗ | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $100 | — |
| Modalities | text | text · vision | o3-pro |
| Released | 2026-05-09 | 2025-06-10 | — |
| Cited benchmark scores | 2 | 0 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
ERNIE 5.1 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run ERNIE 5.1 and o3-pro on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.