Quick answers

AIGrow provides AI visibility monitoring, a business assistant, blog publishing and scoped automation services. Start with the free scan to inspect the output before paying.

Run the free scan

The scan is free and monitoring plans start at $29 a month. The operations audit is $290, the visibility audit is $490, and custom builds receive a written price before work starts.

See the plans

Run the free scan. It reads your site, asks several AI assistants what your customers ask, and points you at one thing. No signup required, and it will tell you if you do not need us.

Start now

Yes. Use the contact form for product, billing, support or project questions. Describe the goal and the system involved so the first reply can be specific.

Contact AIGrow
Head to head · prices checked 22 September 2026

DeepSeek V4 Pro vs GPT-5.6 Sol

Shows how much quality a buyer gives up, if any, for a model that costs a fraction of Sol. Both list prices from the makers’ own pages, and what three everyday jobs cost on each.

What a job costsEvery model

US dollars, standard rate, shortest context band. Price only: this page does not rank quality.

1,000 support replies
3.6×what GPT-5.6 Sol costs next to DeepSeek V4 Pro
DeepSeek V4 Pro
$5.54
GPT-5.6 Sol
$20.00
DeepSeek V4 Pro, per M tokens
$1.32 / $3.96
GPT-5.6 Sol, per M tokens
$4 / $20

3,000 tokens in and 400 out each, at list price.

Per million tokens, DeepSeek V4 Pro costs $1.32 in and $3.96 out; GPT-5.6 Sol costs $4 in and $20 out. 1,000 support replies cost $20.00 on GPT-5.6 Sol and $5.54 on DeepSeek V4 Pro, so GPT-5.6 Sol costs 3.6 times as much. DeepSeek V4 Pro reads up to 1M tokens at once, GPT-5.6 Sol up to 1.05M.

Side by side

Each maker’s published rate for its standard tier. Cached input is what a repeated prompt prefix costs once the provider has stored it.

DeepSeek V4 Pro and GPT-5.6 Sol: list prices and specifications
FactDeepSeek V4 ProGPT-5.6 Sol
MakerDeepSeekOpenAI
TierFlagshipsFlagships
Input, per M tokens$1.32$4.00
Output, per M tokens$3.96$20.00
Cached input$0.044$0.40
Context window1M1.05M
Released13 Aug 20269 Jul 2026
WeightsOpenClosed

What a job costs on each

1,000 runs of each job at the two list prices. The gap moves from job to job because the models price input, output and cached context differently.

Cost of 1,000 runs of three jobs on DeepSeek V4 Pro and GPT-5.6 Sol
JobDeepSeek V4 ProGPT-5.6 SolCheaper
Support reply3,000 in, 400 out.$5.54$20.00DeepSeek V4 Pro, 72% less
Document summary25,000 in, 1,000 out.$36.96$120DeepSeek V4 Pro, 69% less
Agent task80,000 in (70,000 cached), 3,000 out.$28.16$128DeepSeek V4 Pro, 78% less

The token counts are ours, chosen to look like real work; the prices are the makers’. A model with no published cache price bills the agent task’s repeated context at its full input rate.

The small print

What each base rate leaves out, from the makers’ own pages: surcharges, discounts, promotions and cache pricing.

DeepSeek V4 Pro
Peak-hour rate, recorded as the list price. Off-peak (all hours outside 01:00-04:00 and 06:00-10:00 UTC on weekdays) is half: $0.66 / $1.98, cache hit $0.022. Peak and off-peak pricing started 2026-08-16. API name deepseek-v4-pro serves DeepSeek-V4-Pro-0813 (V4 first shipped 2026-04-24). Max output 384K. DeepSeek’s pricing page
GPT-5.6 Sol
Promotional price since 2026-08-21, 'at least through November 21, 2026'; the previous price was $5 / $30. Requests above 272K input tokens bill 2x input and 1.5x output ($8 / $30). Cache write $5. Batch and Flex 50% off. Data residency adds 10%. OpenAI’s pricing page

Other comparisons

Every head to head on the list that involves DeepSeek V4 Pro or GPT-5.6 Sol.

Run both for a quarter of list price

AIGROW API credit covers DeepSeek V4 Pro and GPT-5.6 Sol and is metered at the list prices above: $25 buys $100 of usage.

See API creditCompare every model

Prices checked 22 September 2026