Compare/ERNIE 5.0 Thinking Preview vs o3

ERNIE 5.0 Thinking Previewvso3

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

Baidu

ERNIE 5.0 Thinking Preview

Input
$0/M
Output
$0/M
Speed
TTFT
OpenAI

o3

Input
$2/M
Output
$8/M
Speed
125 tok/s
TTFT
6.65s

Winner by Category

Cheaper
ERNIE 5.0 Thinking Preview
Faster (tok/s)
o3
Lower Latency
ERNIE 5.0 Thinking Preview
Benchmarks (1-10)
o3

Pricing Comparison

MetricERNIE 5.0 Thinking Previewo3
Input ($/M tokens)$0$2
Output ($/M tokens)$0$8
Cost for 1M input + 100K output tokens:
ERNIE 5.0 Thinking Preview$0.00
o3$2.80

Speed Comparison

Output Speed (tokens/s) — higher is better
ERNIE 5.0 Thinking Preview
o3
125 tok/s
Time to First Token (seconds) — lower is better
ERNIE 5.0 Thinking Preview
o3
6.65s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
21.930.4
Coding Index
Math Index
85.088.3
GPQA Diamond
77.7%82.7%
MMLU-Pro
83.0%85.3%
LiveCodeBench
81.2%80.8%
AIME 2025
85.0%88.3%
MATH-500
99.2%
Humanity's Last Exam
12.7%20.0%
SciCode
37.5%41.0%
IFBench
41.4%71.4%
TerminalBench
25.0%37.1%
ERNIE 5.0 Thinking Preview1 wins
10 winso3

Frequently Asked Questions

Which is cheaper, ERNIE 5.0 Thinking Preview or o3?

ERNIE 5.0 Thinking Preview is cheaper overall. Its blended price (3:1 input/output ratio) is $0.00/M tokens vs $3.50/M for o3.

Which model performs better on benchmarks?

o3 wins 10 out of 12 benchmarks compared to 1 for ERNIE 5.0 Thinking Preview. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

o3 generates tokens faster at 125 tok/s vs 0 tok/s. ERNIE 5.0 Thinking Preview also has lower time-to-first-token (0.00s vs 6.65s).

When should I use ERNIE 5.0 Thinking Preview vs o3?

Choose based on your priorities: ERNIE 5.0 Thinking Preview for lower cost, o3 for stronger benchmark performance, and o3 for faster generation. For latency-sensitive apps, check the TTFT comparison above.