Mistral-Small-4-119B-2603 vs Sonar Reasoning Pro
API pricing, benchmark indices and specs — updated 19 October 2026.
mistralai · A · Open weights
Params
119.4 B
Context
—
30d
69 K
apache-2.0 · commercial OK
perplexity · B · API-only
Input / 1M
$2.00
Output / 1M
$8.00
AA index
11.8
proprietary · 128K context
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Mistral-Small-4-119B-2603 | Sonar Reasoning Pro |
|---|---|---|
| Deployment | Open weights · also via API | API-only (closed weights) |
| Parameters | 119.4 B | n/a — API-only |
| Architecture | Mistral3ForConditionalGeneration | n/a — API-only |
| Context length | 262,144 | 128,000 |
| Licence | apache-2.0 | Proprietary |
| Commercial use | Allowed | Per API terms |
| Languages | 24 | n/a — API-only |
| Downloads 30d | 68,887 | n/a — API-only |
| Downloads all time | 698 K | n/a — API-only |
| Quantizations on the Hub | SAFETENSORS | n/a — API-only |
| Gated | No | n/a — API-only |
| First seen on the Hub | 2026-01-23 | n/a — API-only |
| API input price / 1M tokens | $0.15 | $2.00 |
| API output price / 1M tokens | $0.60 | $8.00 |
| Est. cost per 1M input + 1M output tokens | $0.75 | $10.00 |
| Cached input / 1M tokens | $0.015 | — |
| AA Intelligence Index | 11.3 | 11.8 |
| AA Coding Index | 26.6 | — |
| AA Agentic Index | 0.8 | — |
| Max output tokens | 209,715 | 115,200 |
| API providers | 1 | 1 |
| Tool calling | Yes | No |
| Reasoning mode | Yes | Yes |
API cost
Estimated cost of 1M input + 1M output tokens via OpenRouter
Mistral-Small-4-119B-2603
$0.75
Sonar Reasoning Pro
$10.00
Mistral-Small-4-119B-2603 is 13.3× cheaper at list price.
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Mistral-Small-4-119B-2603 · fp16
284.4 GB / 24 GB