DeepSeek V4 Pro 0813 (Reasoning, Max Effort) vs. Quasar 438B
Comparison between DeepSeek V4 Pro 0813 (Reasoning, Max Effort) and Quasar 438B across intelligence, price, speed, context window and more.
For details relating to our methodology, see our Methodology page.
Highlights
Model Comparison
DeepSeek V4 Pro 0813 (Reasoning, Max Effort) | Quasar 438B | ||
|---|---|---|---|
| Intelligence Index | 53 | 43 | DeepSeek V4 Pro 0813 (Reasoning, Max Effort) is more intelligent than Quasar 438B |
| Price per 1M Tokens | $0.69 | $0.72 | DeepSeek V4 Pro 0813 (Reasoning, Max Effort) is cheaper than Quasar 438B |
| Output Speed | 54 tokens/s | 183 tokens/s | Quasar 438B is faster than DeepSeek V4 Pro 0813 (Reasoning, Max Effort) |
| Time to First Token | 1.65s | 1.06s | Quasar 438B responds faster than DeepSeek V4 Pro 0813 (Reasoning, Max Effort) |
| Context Window | 1000k tokens~1,500 A4 pages of size 12 Arial font | 1000k tokens~1,500 A4 pages of size 12 Arial font | Both DeepSeek V4 Pro 0813 (Reasoning, Max Effort) and Quasar 438B have the same sized context window |
| Release Date | August 2026 | August 2026 | DeepSeek V4 Pro 0813 (Reasoning, Max Effort) has a more recent release date than Quasar 438B |
| Parameters | 1600B, 49B active at inference time | 438B | DeepSeek V4 Pro 0813 (Reasoning, Max Effort) has more parameters than Quasar 438B |
| Reasoning | Yes | Yes | Both DeepSeek V4 Pro 0813 (Reasoning, Max Effort) and Quasar 438B have reasoning |
| Image Input Support | No | No | Neither DeepSeek V4 Pro 0813 (Reasoning, Max Effort) nor Quasar 438B have image input support |
| Open Source (Weights) | No | DeepSeek V4 Pro 0813 (Reasoning, Max Effort) is open source while Quasar 438B is proprietary |
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Agentic real-world work tasks, (Elo-500)/2000
Agentic tool use
Agentic coding & terminal use
Coding
Reasoning & knowledge
Scientific reasoning
Physics reasoning
Knowledge
1 - hallucination rate
Long context reasoning
Agentic knowledge work, Elo
Agentic SaaS workflows
Legal agentic work, criterion pass rate
Agentic business operations
Quantitative analysis on spreadsheets & documents
Instruction following
Long-horizon agentic tasks
Kubernetes incident root-cause analysis
Visual reasoning
AA-Briefcase
AA-Briefcase Elo
AA-Omniscience
AA-Omniscience Index
Openness Index
Artificial Analysis Openness Index: Score
Intelligence Index Comparisons
Intelligence Index vs. Cost per Intelligence Index Task
Token Use
Output Tokens per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Cost to Run Artificial Analysis Intelligence Index
Pricing: Cache Hit, Input, and Output
Context Window
Context Window
Speed
Measured by Output Speed (tokens per second)
Output Speed
Time per Intelligence Index Task
Latency
Measured by Time (seconds) to First Token
Latency: Time To First Answer Token
End-to-End Response Time
Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Model Size (Open Weights Models Only)
Model Size: Total and Active Parameters
Frequently Asked Questions
DeepSeek V4 Pro 0813 (Reasoning, Max Effort) is more intelligent. DeepSeek V4 Pro 0813 (Reasoning, Max Effort) scores 53, compared with Quasar 438B at 43 on the Artificial Analysis Intelligence Index.
Quasar 438B is faster. Quasar 438B generates 182.9 tokens per second, compared with DeepSeek V4 Pro 0813 (Reasoning, Max Effort) at 54.1 tokens per second.
DeepSeek V4 Pro 0813 (Reasoning, Max Effort) is cheaper. DeepSeek V4 Pro 0813 (Reasoning, Max Effort) costs $0.69 per 1M tokens, compared with Quasar 438B at $0.72 per 1M tokens (7:2:1 cache hit/input/output ratio).
Quasar 438B has lower latency. Quasar 438B has a time to first token of 1.06s, compared with DeepSeek V4 Pro 0813 (Reasoning, Max Effort) at 1.65s.
Both models have a context window of 1.0M tokens.