DeepSeek V4 Pro 0813 (Non-reasoning) vs GPT-5.5 Instant (June 2026)
Which is better for the money: DeepSeek V4 Pro 0813 (Non-reasoning) by DeepSeek or GPT-5.5 Instant (June 2026) by OpenAI? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
GPT-5.5 Instant (June 2026) scores 5.6 points higher (26.0 vs 20.4) but costs 2.6× as much to run the benchmark ($1184 vs $451; premium vs mid-range cost classes). Pick GPT-5.5 Instant (June 2026) when the extra intelligence is worth the premium, otherwise DeepSeek V4 Pro 0813 (Non-reasoning).
| Metric | DeepSeek V4 Pro 0813 (Non-reasoning) | GPT-5.5 Instant (June 2026) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 20.4 | 26.0 | +27.5% GPT-5.5 Instant (June… is 27.5% more intelligent |
| Total AA cost (lower is better) | $450.76 | $1,184.34 | +162.7% GPT-5.5 Instant (June… is 2.6× more expensive |
| End-to-end time (lower is better) | 6.58s | 16.68s | +153.5% GPT-5.5 Instant (June… is 153.5% slower |
| Price per 1M tokens (in / out) | $1.32 / $3.96 | $5.00 / $30.0 | |
| Input modalities | Text | Text, Image |
GPT-5.5 Instant (June 2026) vs DeepSeek V4 Pro 0813 (Non-reasoning): 27.5% more intelligence, 162.7% more cost to run the AA benchmark, and 153.5% slower end-to-end.
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Pro 0813 (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- GPT-5.5 Instant (June 2026) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
DeepSeek V4 Pro 0813 (Non-reasoning)GPT-5.5 Instant (June 2026)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/deepseek-v4-pro-non-reasoning/gpt-5-5-instant-06-26 · Markdown: /api/v1/compare/deepseek-v4-pro-non-reasoning/gpt-5-5-instant-06-26?format=md · llms.txt · agent skill