DeepSeek-V4.1-Flash-1017 vs Solar Pro 4

API pricing, benchmark indices and specs — updated 4 November 2026.

deepseek-ai · A · Open weights

Params

763.2 B

Context

—

30d

312 K

mit · commercial OK

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	DeepSeek-V4.1-Flash-1017	Solar Pro 4
Deployment	Open weights · also via API	API-only (closed weights)
Parameters	763.2 B	n/a — API-only
Architecture	DeepseekV41ForCausalLM	n/a — API-only
Context length	1,048,576	524,288
Licence	mit	Proprietary
Commercial use	Allowed	Per API terms
Languages	—	n/a — API-only
Downloads 30d	312,293	n/a — API-only
Downloads all time	312 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	2026-10-17	n/a — API-only
API input price / 1M tokens	$0.006	$0.15
API output price / 1M tokens	$0.50	$0.60
Est. cost per 1M input + 1M output tokens	$0.51	$0.75
Cached input / 1M tokens	$0.005	$0.03
AA Intelligence Index	28.6	28.2
AA Coding Index	—	52.7
AA Agentic Index	—	—
Max output tokens	943,718	131,072
API providers	41	1
Tool calling	Yes	Yes
Reasoning mode	Yes	Yes

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

DeepSeek-V4.1-Flash-1017 $0.51

Solar Pro 4 $0.75

DeepSeek-V4.1-Flash-1017 is 1.5× cheaper at list price.

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

DeepSeek-V4.1-Flash-1017 · fp16 676.3 GB / 24 GB

❌ Won’t fit