GPTvsDeepSeek

GPT 5.6 Sol vs DeepSeek Flash

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

GPT 5.6 Sol

Flagship

DeepSeek Flash

Fast / Budget
Input $/MTok
$4.00
$0.15
Output $/MTok
$20.00
$0.60
Cache discount
90% off
98% off
Context
922K
1M

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
67
vs
0
Code Review
92
vs
0
Summarization
70
vs
0
Q&A
91
vs
0
Extraction
75
vs
0
Reasoning
92
vs
0
Classification
86
vs
0
Creative Writing
76
vs
0
GPT 5.6 Sol
DeepSeek Flash

Guidance

When to use GPT 5.6 Sol vs DeepSeek Flash

Choose GPT 5.6 Sol when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose DeepSeek Flash when...

  • -Cost matters: 96% cheaper on input tokens
  • -You need a larger context window (1M vs 922K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.6 Sol
DeepSeek Flash
100K tokens
$0.88
$0.03Cheaper
1M tokens
$14.60
$0.28Cheaper
10M tokens
$146.00
$2.85Cheaper

FAQ

When should I use GPT 5.6 Sol instead of DeepSeek Flash?

GPT 5.6 Sol and DeepSeek Flash perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is DeepSeek Flash cheaper than GPT 5.6 Sol?

Yes. DeepSeek Flash input costs $0.15/MTok vs $4.00/MTok for GPT 5.6 Sol, saving 96% on input.

What are the context window sizes for GPT 5.6 Sol and DeepSeek Flash?

GPT 5.6 Sol has a 922K token context window. DeepSeek Flash has a 1M token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.