MiniMax-M3 vs Solar Pro 4

API pricing, benchmark indices and specs — updated 19 October 2026.

MiniMaxAI · A · Open weights
Params
427.0 B
Context
—
30d
203 K
upstage · B · API-only
Input / 1M
$0.15
Output / 1M
$0.60
AA index
28.2
proprietary · 524.3K context

Specification comparison

Differences are highlighted; identical values are muted.

Specification MiniMax-M3 Solar Pro 4
Deployment Open weights · also via API API-only (closed weights)
Parameters 427.0 B n/a — API-only
Architecture MiniMaxM3SparseForConditionalGeneration n/a — API-only
Context length 524,288 524,288
Licence other Proprietary
Commercial use Unknown Per API terms
Languages — n/a — API-only
Downloads 30d 203,491 n/a — API-only
Downloads all time 924 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 2026-06-02 n/a — API-only
API input price / 1M tokens $0.30 $0.15
API output price / 1M tokens $1.20 $0.60
Est. cost per 1M input + 1M output tokens $1.50 $0.75
Cached input / 1M tokens $0.06 $0.03
AA Intelligence Index 29.2 28.2
AA Coding Index 58.6 52.7
AA Agentic Index 29.5 —
Max output tokens 512,000 131,072
API providers 12 1
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

MiniMax-M3 $1.50
Solar Pro 4 $0.75

Solar Pro 4 is 2.0× cheaper at list price.

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

MiniMax-M3 · fp16 1,004.2 GB / 24 GB
❌ Won’t fit

Adjacent comparisons