| Signal | ERNIE 4.5 21B A3B | Delta | o3 Mini High |
|---|---|---|---|
Capabilities | 33 | -33 | |
Pricing | 0 | -4 | |
Context window size | 81 | -3 | |
Recency | 91 | +33 | |
Output Capacity | 65 | -18 | |
Benchmarks | 0 | -62 | |
| Overall Result | 1 wins | of 6 | 5 wins |
10
days higher
2
days
18
days higher
Baidu
OpenAI
ERNIE 4.5 21B A3B saves you $309.00/month
That's $3708.00/year compared to o3 Mini High at your current usage level of 100K calls/month.
| Metric | ERNIE 4.5 21B A3B | o3 Mini High | Winner |
|---|---|---|---|
| Overall Score | 65 | 65 | o3 Mini High |
| Rank | #197 | #193 | o3 Mini High |
| Quality Rank | #197 | #193 | o3 Mini High |
| Adoption Rank | #197 | #193 | o3 Mini High |
| Parameters | 21B | -- | -- |
| Context Window | 120K | 200K | o3 Mini High |
| Pricing | $0.07/$0.28/M | $1.10/$4.40/M | -- |
| Signal Scores | |||
| Capabilities | 33 | 67 | o3 Mini High |
| Pricing | 0 | 4 | o3 Mini High |
| Context window size | 81 | 84 | o3 Mini High |
| Recency | 91 | 58 | ERNIE 4.5 21B A3B |
| Output Capacity | 65 | 83 | o3 Mini High |
| Benchmarks | -- | 62 | o3 Mini High |
Our composite score (0–100) combines six weighted signals: benchmark performance (25%), pricing efficiency (25%), context window size (15%), model recency (15%), output capacity (10%), and capability versatility (10%). Here's what the scores mean for these two models:
Scores 65/100 (rank #197), placing it in the top 32% of all 290 models tracked.
Scores 65/100 (rank #193), placing it in the top 34% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
ERNIE 4.5 21B A3B offers 94% better value per quality point. At 1M tokens/day, you'd spend $5.25/month with ERNIE 4.5 21B A3B vs $82.50/month with o3 Mini High - a $77.25 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. ERNIE 4.5 21B A3B also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (200K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.28/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (65/100) correlates with better nuance, coherence, and style in long-form content
ERNIE 4.5 21B A3B and o3 Mini High are extremely close in overall performance (only 0.29999999999999716 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
ERNIE 4.5 21B A3B
Marginally better benchmark scores; both are excellent
Best for Cost
ERNIE 4.5 21B A3B
94% lower pricing; better value at scale
Best for Reliability
ERNIE 4.5 21B A3B
Higher uptime and faster response speeds
Best for Prototyping
ERNIE 4.5 21B A3B
Stronger community support and better developer experience
Best for Production
ERNIE 4.5 21B A3B
Wider enterprise adoption and proven at scale
by Baidu
| Capability | ERNIE 4.5 21B A3B | o3 Mini High |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Modediffers | ||
| Reasoningdiffers | ||
| Web Search | ||
| Image Output |
Baidu
OpenAI
ERNIE 4.5 21B A3B saves you $6.80/month
That's 94% cheaper than o3 Mini High at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | ERNIE 4.5 21B A3B | o3 Mini High |
|---|---|---|
| Context Window | 120K | 200K |
| Max Output Tokens | 8,000 | 100,000 |
| Open Source | Yes | No |
| Created | Aug 12, 2025 | Feb 12, 2025 |
o3 Mini High scores 65/100 (rank #193) compared to ERNIE 4.5 21B A3B's 65/100 (rank #197), giving it a 0-point advantage. o3 Mini High is the stronger overall choice, though ERNIE 4.5 21B A3B may excel in specific areas like cost efficiency.
ERNIE 4.5 21B A3B is ranked #197 and o3 Mini High is ranked #193 out of 290+ AI models. Rankings use a composite score combining benchmark performance (25%), pricing (25%), context window (15%), recency (15%), output capacity (10%), and versatility (10%). Scores update hourly.
ERNIE 4.5 21B A3B is cheaper at $0.28/M output tokens vs o3 Mini High's $4.40/M output tokens - 15.7x more expensive. Input token pricing: ERNIE 4.5 21B A3B at $0.07/M vs o3 Mini High at $1.10/M.
o3 Mini High has a larger context window of 200,000 tokens compared to ERNIE 4.5 21B A3B's 120,000 tokens. A larger context window means the model can process longer documents and conversations.