Side-by-side comparison
ERNIE 4.5 21B A3B Thinking vs Reka Flash 3
Baidu Qianfan
ERNIE 4.5 21B A3B Thinking
Input / 1M
$0.0700
Output / 1M
$0.2800
| ERNIE 4.5 21B A3B Thinking | Reka Flash 3 | |
|---|---|---|
| Provider | Baidu Qianfan | Rekaai |
| Context window Maximum tokens (input + output) the model can process in a single request. Glossary → | 131,072 | 65,536 |
| Capabilities Optional capabilities the model advertises: vision (images), tools (function calling), json_mode (structured output). | text-only | text-only |
| Input $ / 1M tokens Cost for tokens you send (prompt + context). Cheaper side highlighted. Glossary → | 0.0700 | 0.1000 |
| Output $ / 1M tokens Cost for tokens the model generates. Output is normally 3–5× pricier than input. Glossary → | 0.2800 | 0.2000 |
Frequently asked questions
Which is cheaper, ERNIE 4.5 21B A3B Thinking or Reka Flash 3?
Reka Flash 3 is cheaper than ERNIE 4.5 21B A3B Thinking on a 50/50 input/output blend by about $0.025 per 1M tokens. Exact savings depend on your input-vs-output ratio — use the cost calculator on this page for a workload-specific estimate.
Which has a larger context window, ERNIE 4.5 21B A3B Thinking or Reka Flash 3?
ERNIE 4.5 21B A3B Thinking has the larger context window at 131k tokens versus 66k tokens for Reka Flash 3. That means ERNIE 4.5 21B A3B Thinking can ingest about 2.0x as much text per request.
What is the difference between ERNIE 4.5 21B A3B Thinking and Reka Flash 3?
ERNIE 4.5 21B A3B Thinking comes from Baidu Qianfan; Reka Flash 3 comes from Rekaai. They differ in pricing, context window, and supported capabilities — see the side-by-side table on this page for the exact figures, refreshed nightly.