Automated page. Written and translated automatically by AI and checked against the sources by software; no human editor. SI-IQ is an index built from public benchmark results, not an IQ test. How it works
How smart is DeepSeek-V4-Flash?
DeepSeek-V4-Flash is a model from DeepSeek, released on Apr 24, 2026. Its SI-IQ is 129 (90% interval 116–143), estimated from 2 benchmark results by 1 independent evaluators.
This model has fewer than 5 independent benchmark results or fewer than 2 different evaluators, so it is shown but not ranked.
Facts
- Developer
- DeepSeek
- Released
- Apr 24, 2026
- Access
- Open weights (restricted licence)
- Benchmarks used
- 2 results from 1 evaluators
- API price
- $0.30 input / $1.20 output per 1M tokens (developer's price list, Oct 18, 2026)
- Context window
- 1,000,000 tokens
Ability by area (SI-IQ, 90% interval)
Every benchmark result we used
Each score is one value exactly as the source published it: for Epoch AI the best of its run settings, for OpenRouter the median hosting provider (the developer's own hosting when it ran the test). “Implied SI-IQ” is the ability that this single result points to; the overall SI-IQ is their precision-weighted average.
| Benchmark | Score | Evaluated by | Source |
|---|---|---|---|
| GPQA Diamond (OpenRouter run) | 89.9% | OpenRouter | OpenRouter benchmark datasets · data file |
| τ²-bench Airline (OpenRouter run) | 77.6% | OpenRouter | OpenRouter benchmark datasets · data file |
Human preference (Arena)
On the Arena leaderboard, where people vote between two anonymous answers, DeepSeek-V4-Flash has a rating of 1,436 (1,432–1,440) from 51,987 votes (published Oct 15, 2026). Human preference is a different measure from benchmark ability and is not part of SI-IQ. Arena (Hugging Face)
Computed with SI-IQ method version 1.0.0. Read the full methodology
Data sources: Arena leaderboard dataset on Hugging Face (CC BY 4.0); API list prices via LiteLLM's price table (MIT); each price links to the developer's pricing page; Source: OpenRouter (openrouter.ai), licensed under CC BY 4.0: reuse and republish with attribution to OpenRouter..