Rerank 3.5 vs voyage-4
Side-by-side API pricing comparison · Cohere vs Voyage AI
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Rerank 3.5 is 200% cheaper on blended cost ($0.020 vs $0.060/Mtok)
Rerank 3.5
by Cohere
Current embeddingInput
$0.020/Mtok
Output
$0.020/Mtok
✓ Cheaper
| Blended avg | $0.020/Mtok |
|---|---|
| Context | — tokens |
| Modality | text |
| Parameters | Proprietary |
| Released | Mar 1, 2025 |
voyage-4
by Voyage AI
Current embeddingInput
$0.060/Mtok
Output
$0.060/Mtok
| Blended avg | $0.060/Mtok |
|---|---|
| Context | — tokens |
| Modality | text |
| Parameters | Proprietary |
| Released | Jun 1, 2025 |
Cost at scale — 1M tokens (50/50 input/output)
| Volume | Rerank 3.5 | voyage-4 | Savings |
|---|---|---|---|
| 1M tokens | $0.02 | $0.06 | $0.04 (66.7%) |
| 10M tokens | $0.2 | $0.6 | $0.4 (66.7%) |
| 100M tokens | $2 | $6 | $4 (66.7%) |
| 1000M tokens | $20 | $60 | $40 (66.7%) |
Summary
Rerank 3.5 by Cohere costs $0.020/Mtok input and $0.020/Mtok output, with a —-token context window. It supports text input.
voyage-4 by Voyage AI costs $0.060/Mtok input and $0.060/Mtok output, with a —-token context window. It supports text input.
On a blended cost basis, Rerank 3.5 is 200% cheaper than voyage-4.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.