DeepSeek V4 Flash Latest vs Solar Pro 4
| Signal | DeepSeek V4 Flash Latest | Delta | Solar Pro 4 |
|---|---|---|---|
Capabilities | 67 | -- | |
Pricing | 99 | -1 | |
Context window size | 97 | +6 | |
Recency | 100 | -- | |
Output Capacity | 96 | +14 | |
| Overall Result | 2 wins | of 5 | 1 wins |
Score History
40
current score
Tied
right now
40
current score
DeepSeek V4 Flash Latest
~deepseek
Solar Pro 4
Upstage
Solar Pro 4 saves you $26.00/month
That's $312.00/year compared to DeepSeek V4 Flash Latest at your current usage level of 100K calls/month.
| Metric | DeepSeek V4 Flash Latest | Solar Pro 4 | Winner |
|---|---|---|---|
| Overall Score | 40 | 40 | -- |
| Rank | #279 | #277 | Solar Pro 4 |
| Quality Rank | #279 | #277 | Solar Pro 4 |
| Adoption Rank | #279 | #277 | Solar Pro 4 |
| Parameters | -- | -- | -- |
| Context Window | 1311K | 524K | DeepSeek V4 Flash Latest |
| Pricing | $0.03/$1.00/M | $0.09/$0.36/M | -- |
| Signal Scores | |||
| Capabilities | 67 | 67 | DeepSeek V4 Flash Latest |
| Pricing | 99 | 100 | Solar Pro 4 |
| Context window size | 97 | 91 | DeepSeek V4 Flash Latest |
| Recency | 100 | 100 | DeepSeek V4 Flash Latest |
| Output Capacity | 96 | 82 | DeepSeek V4 Flash Latest |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 40/100 (rank #279), placing it in the top 4% of all 290 models tracked.
Scores 40/100 (rank #277), placing it in the top 5% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Choose DeepSeek V4 Flash Latest when you need:
- Processing long documents or large codebases (1311K token context)
- Step-by-step reasoning and chain-of-thought problem solving
Choose Solar Pro 4 when you need:
- High-volume production workloads where API costs must be minimized
- Step-by-step reasoning and chain-of-thought problem solving
Solar Pro 4 offers 56% better value per quality point. At 1M tokens/day, you'd spend $6.75/month with Solar Pro 4 vs $15.45/month with DeepSeek V4 Flash Latest - a $8.70 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Solar Pro 4 also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1311K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.36/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (40/100) correlates with better nuance, coherence, and style in long-form content
DeepSeek V4 Flash Latest and Solar Pro 4 are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
By Use Case
Best for Quality
DeepSeek V4 Flash Latest
Marginally better benchmark scores; both are excellent
Best for Cost
Solar Pro 4
56% lower pricing; better value at scale
Best for Reliability
DeepSeek V4 Flash Latest
Higher uptime and faster response speeds
Best for Prototyping
DeepSeek V4 Flash Latest
Stronger community support and better developer experience
Best for Production
DeepSeek V4 Flash Latest
Wider enterprise adoption and proven at scale
by ~deepseek
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | DeepSeek V4 Flash Latest | Solar Pro 4 |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
DeepSeek V4 Flash Latest
~deepseek
Solar Pro 4
Upstage
Solar Pro 4 saves you $0.6600/month
That's 53% cheaper than DeepSeek V4 Flash Latest at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | DeepSeek V4 Flash Latest | Solar Pro 4 |
|---|---|---|
| Context Window | 1.3M | 524K |
| Max Output Tokens | 943,718 | 131,072 |
| Open Source | No | No |
| Created | Aug 1, 2026 | Aug 10, 2026 |