ernie familyActive
Baidu Ernie 4.5 21B A3B Thinking
Reasoning model for deliberate analysis, multi-step problem solving, and tool use
Context
131,072
Max output
65,536
Input / 1M
$0.07
Output / 1M
$0.28
Providers
2
01Profile
Profile
Released
2025-03-16
Last updated
2025-09-19
Knowledge cutoff
2025-03
Weights
Closed
02Capabilities
Capabilities
Input
text
Output
text
Reasoning
Yes
Tool calling
No
Structured output
No
Attachments
No
Cache read
—
Cache write
—
03Pricing
Pricing across 3 providers
Per 1M tokens, USD. Sorted by input price. First-party row highlighted.
04History
Change history
11+ recent events since 2025-03-16
2026-08-02Removedkiloofferingremoved→ new
2026-08-02Removedkiloofferingremoved→ new
2026-05-31Removedopenrouterofferingremoved→ new
2026-05-31Removedopenrouterofferingremoved→ new
2026-05-15Addedopenrouteroffering→ new
2026-05-15Addedopenrouteroffering→ new
2026-02-16Addedkilooffering→ new
2026-02-16Addedkilooffering→ new
2026-01-07Addednovita-aioffering→ new
2026-01-07Addednovita-aioffering→ new
2025-10-23Addedheliconeoffering→ new