DeepSeek V4 Flash 0731 vs Claude Sonnet 4.6: Release Comparison
Comparison of the DeepSeek V4 Flash 0731 and Claude Sonnet 4.6 releases: 2 and 3 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 5 models.
- For intelligence, DeepSeek V4 Flash 0731 scores highest: DeepSeek V4 Flash Vision (Reasoning, Max Effort) at 35, against Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) at 30 for Claude Sonnet 4.6.
- For output speed, DeepSeek V4 Flash 0731 is fastest: DeepSeek V4 Flash Vision (Reasoning, Max Effort) at 217 t/s, against Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) at 45 t/s for Claude Sonnet 4.6.
- For cost per task, DeepSeek V4 Flash 0731 is cheapest: DeepSeek V4 Flash 0731 (Reasoning, Max Effort) at $0.22, against Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) at $2.49 for Claude Sonnet 4.6.
Releases compared
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indices
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2, AA-Briefcase, Terminal-Bench 4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2, AA-Briefcase, AA-LCR v1.1 · Higher is better
Further details
Input modality | Output modality | Weights | Provider Benchmarks | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DeepSeek V4 Flash Vision (Reasoning, Max Effort) |  DeepSeek | 35 | 38 | 44 | 37 | - | 35 | 40 | $0.31 | $0.2 | $0.44 | $1.32 | $0.014 | $445 | 69k | 46k | 170M | 217 | 1.16s | 10.36s | 12.66s | 235.41s | 284B 13B active at inference time | 1M | Aug 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |  | |
| DeepSeek V4 Flash 0731 (Reasoning, Max Effort) | DeepSeek | 35 | 38 | 43 | 38 | 35 | 35 | 40 | $0.22 | $0.2 | $0.44 | $1.32 | $0.014 | $474 | 62k | 45k | 242M | 215 | 1.61s | 10.92s | 13.24s | 211.38s | 284B 13B active at inference time | 1M | Jul 2026 | - | Yes | Supports: text | Supports: text |    +12 | |||
| Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort) |  Anthropic | 30 | 34 | 31 | 38 | 32 | 32 | 43 | $2.49 | $2.3 | $3.00 | $15.00 | $0.30 | $4,925 | 75k | 56k | 233M | 45 | 129.84s | 129.84s | 140.84s | 1501.35s | - | 1M | Feb 2026 | - | Yes | Supports: text and image | Supports: text | Not available | - |    | |
| Claude Sonnet 4.6 (Non-reasoning, High Effort) | Anthropic | 25 | - | - | - | - | - | - | - | $2.3 | $3.00 | $15.00 | $0.30 | - | - | - | - | 40 | 1.32s | 1.32s | 13.69s | - | - | 1M | Feb 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |
| Claude Sonnet 4.6 (Non-reasoning, Low Effort) | Anthropic | 23 | - | - | - | - | - | - | - | $2.3 | $3.00 | $15.00 | $0.30 | - | - | - | - | 40 | 1.41s | 1.41s | 14.00s | - | - | 1M | Feb 2026 | - | No | Supports: text and image | Supports: text | Not available | - | | |