V4 Pro 0813 vs GPT-5.6 Sol
53 vs 61 on intelligence, an order of magnitude apart on price
Sol is GPT-5.6’s top tier (GA 2026-07-09). Pro 0813 is DeepSeek’s open flagship (GA 2026-08-13). Independent AA pages that still say Pro 45 are pre-0813 until refreshed.
Updated 2026-09-21
Highlights
DeepSeek side
Official agent table vs Fable/K3/Opus-4.8. Not an AA 0813 index yet in this pack.
OpenAI top tier
Sol scores 61 on the Artificial Analysis Intelligence Index (Max). Official now lists $4/M in / $20/M out (promo through at least 2026-11-21, snapshot 2026-09-17); the launch $5/$30 is gone.
Old AA Pro
“45 vs 57” compared an older V4 Pro. Footnote it or drop it.
Weights
0813 you can download. Sol you cannot.
The matchup
Searchers want a single winner. Give them a job split: Sol for polished long reasoning and OpenAI product surface; 0813 for open agents and token bills.
Why it is trending
GPT-5.6 has Sol/Terra/Luna. This page’s opponent is Sol only. Link the existing Sol vs Terra vs Luna guide.
Timeline
GPT-5.6 GA, Sol is the top tier.
Pro 0813 GA.
Re-open AA Pro 0813 vs Sol before hitting publish.
Confirmed vs caution
Usable now
Official DeepSeek 0813 agent table; Sol’s public AA 61 and current $4/$20 pricing (2026-09-12 archive of the official pricing page, promotional at least through 2026-11-21).
Conclusions that do not hold
Pre-0813 AA 45 as if it were this build. Third-party $3.75/$22.5 Sol quotes without OpenAI confirmation.
Pick by job
Pick Sol
Closed flagship reasoning, Codex-native stories, when the last points of quality matter more than 10× price.
Pick 0813
Self-host, open agents, huge volume, DeepSeek Harness Minimal parity with the published table.
How to use it
To choose within GPT-5.6, see /gpt-5-6-sol-vs-terra-vs-luna. For V4 Pro 0813's full specs and benchmarks, see /deepseek-v4-pro-0813.
On QCode
QCode currently lists both deepseek-v4-pro and gpt-5.6-sol on /models, so you can compare them with a single key.
FAQ
Did 0813 beat Sol?
On the Artificial Analysis Intelligence Index, GPT-5.6 Sol scores 61 and DeepSeek V4 Pro 0813 scores 53. Sol leads, but V4 Pro's input price is roughly a ninth of Sol's.
What AA number is safe?
Sol Max 61 from the Grok 4.6 AA article. 0813: wait or footnote stale 45.
Context windows?
Pro 1M official. Sol often listed ~1.05M API — confirm on OpenAI/QCode models.
Codex?
DeepSeek added native Responses/Codex notes on Flash and Pro. Sol is native to the OpenAI/Codex world.
Terra/Luna instead?
GPT-5.6 Terra and Luna are cheaper tiers with their own pricing and capability profile — see /gpt-5-6-sol-vs-terra-vs-luna.
Peak DeepSeek vs Sol bill?
Even peak Pro $3.96 out is far under typical Sol output.
Sources
HF 0813 table; OpenAI GPT-5.6 materials; AA Grok 4.6 article for Sol 61; stale AA Pro compare URL.
Don’t crown a winner on a stale index
Ship the caveat in the hero. Engineers can flip one paragraph when AA updates 0813.
Related
0813 guide
GA specs.
Pro vs Fable 5
Same-table agent grid.
Sol vs Terra vs Luna
Existing GPT-5.6 cluster.
Not affiliated with DeepSeek or OpenAI. DeepSeek pricing moves to peak/off-peak rates from 2026-08-16 16:00 UTC.