Model reference · Synced 2025-04-29
Baidu: ERNIE 4.5 21B A3B Thinking
Baidu: ERNIE 4.5 21B A3B Thinking is an AI model from Kilo Gateway. 131K context window. Capabilities: reasoning, open weights. Available on 2 providers. Cheapest listing: $0.07 input / $0.28 output per 1M tokens.
Quick facts
- Cheapest input: $0.07 per 1M tokens (Kilo Gateway)
- Cheapest output: $0.28 per 1M tokens
- Context window: 131K tokens
- Max output: 66K tokens
- Release date: 2025-09-19
- Capabilities: reasoning, open weights
- Provider count: 2
→ Add Baidu: ERNIE 4.5 21B A3B Thinking to the comparison tool
Provider pricing
Same model, different providers, different prices. Cheapest first.
| Provider | Input / 1M | Output / 1M | Context | Listed |
|---|---|---|---|---|
| Kilo Gateway | $0.07 | $0.28 | 131K | 2025-09-19 |
| Helicone | $0.07 | $0.28 | 128K | 2025-03-16 |
Prices synced daily from models.dev + provider docs.
How to use this model
If you're picking Baidu: ERNIE 4.5 21B A3B Thinking for a project, the three things that matter most:
- Compare it side-by-side with one or two alternatives in the live comparison tool. Pricing differences matter more than benchmarks at scale.
- Pick the cheapest provider that meets your latency / SLA need. Big spread across providers for the same weights.
- Re-evaluate every 3 months. Frontier prices drop fast; a model that's cheapest today may not be in a quarter.
Related models
FAQ
How much does Baidu: ERNIE 4.5 21B A3B Thinking cost? $0.07 input / $0.28 output per 1M tokens at the cheapest listing. See the table above for other providers.
What is the context window? 131K tokens.
Which providers offer it? Kilo Gateway, Helicone.
Where do these numbers come from? models.dev + provider documentation, synced daily. About the data.