DeepSeek V4 Flash Vision Exp vs Solar Pro 4
DeepSeek V4 Flash Vision Exp comes out ahead, 70 to 55 on our weighted score, and it is the cheaper option too.
- Our pick
DeepSeekDeepSeek V4 Flash Vision Exp
70/100- ECI—
- Price$0.216 / $0.647
- Context1M
Upstage
Solar Pro 4
55/100- ECI—
- Price$0.30 / $1.20
- Context524K
Add a model
Make it a three-way comparison.
DeepSeek V4 Flash Vision Exp is our pick
DeepSeek V4 Flash Vision Exp is the better all-round choice, scoring 70/100 against Solar Pro 4 (55). It leads on price, inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceDeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp $0.323 · Solar Pro 4 $0.525 per 1M tokens (3:1 blend)
- Longest contextDeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp 1,000,000 · Solar Pro 4 524,288 tokens
- Widest inputsDeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: Text, Images · Solar Pro 4: Text
- Self-hostingDeepSeek V4 Flash Vision ExpPublishes downloadable weights (MIT)
| Measure | Weight | DeepSeek V4 Flash Vision Exp | Solar Pro 4 |
|---|---|---|---|
| Price | 50% | 73 | 63 |
| Inputs & features | 30% | 70 | 45 |
| Context window | 20% | 60 | 49 |
| Overall | 100% | 70/100 | 55/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | DeepSeek V4 Flash Vision ExpDeepSeek | Solar Pro 4Upstage |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $0.216 (best) | $0.30 |
| Output | $0.647 (best) | $1.20 |
| Cached input | — | $0.06 |
| Blended (3:1) | $0.323 (best) | $0.525 |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 15 providers | Official Upstage API |
| Limits | ||
| Context window | 1,000,000 tokens (best) | 524,288 tokens |
| Max output | 384,000 tokens (best) | 131,072 tokens |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | No |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yesminimal · low · medium · high · xhigh · max |
| Tool calling | Yes | Yes |
| Structured output | Yes | Yes |
| Availability | ||
| Weights | OpenMIT | Proprietary |
| API model ID | — | solar-pro4 |
| API providers | 15 (best) | 3 |
| Released | Aug 21, 2026 | Aug 6, 2026 |
| Knowledge cutoff | — | Feb 2026 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- DeepSeek V4 Flash Vision Exp$3.45
- Solar Pro 4$5.40
Which should you choose?
Which is better: DeepSeek V4 Flash Vision Exp or Solar Pro 4?
DeepSeek V4 Flash Vision Exp is the better all-round choice, scoring 70/100 against Solar Pro 4 (55). It leads on price, inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, DeepSeek V4 Flash Vision Exp or Solar Pro 4?
DeepSeek V4 Flash Vision Exp is cheaper at $0.216 input / $0.647 output per million tokens (median across 15 API providers). Solar Pro 4 costs $0.30 input / $1.20 output per million tokens (official Upstage API price). At a typical mix of three input tokens to one output token, that is $0.323 per million tokens for DeepSeek V4 Flash Vision Exp versus $0.525 for Solar Pro 4 (1.6× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. DeepSeek V4 Flash Vision Exp has not been scored yet and Solar Pro 4 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for DeepSeek V4 Flash Vision Exp and Solar Pro 4 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
DeepSeek V4 Flash Vision Exp has the largest context window at 1,000,000 tokens, against 524,288 for Solar Pro 4. Maximum output per response: DeepSeek V4 Flash Vision Exp up to 384,000, Solar Pro 4 up to 131,072 tokens.
Which can read images, PDFs, audio or video?
DeepSeek V4 Flash Vision Exp accepts text and images; Solar Pro 4 accepts text. DeepSeek V4 Flash Vision Exp handles the widest range of inputs.
Are any of these open source?
DeepSeek V4 Flash Vision Exp publishes its weights (MIT) and can be self-hosted; Solar Pro 4 is proprietary.
Which is newer?
DeepSeek V4 Flash Vision Exp is the newest, released Aug 21, 2026. Solar Pro 4 came out Aug 6, 2026. Knowledge cutoff: Solar Pro 4 Feb 2026.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
Related comparisons
- Add Qwen3.8 Flash NextThree-way comparison
- DeepSeek V4 Flash Vision Exp vs Qwen3.8 Flash NextAlibaba (Qwen)
- DeepSeek V4 Flash Vision Exp vs MiniCPM5-2BOpenBMB
- DeepSeek V4 Flash Vision Exp vs Toast 1Mixedbread
- DeepSeek V4 Flash Vision Exp vs Hy3Tencent
- Solar Pro 4 vs Muse Glimmer 30BMeta
- Solar Pro 4 vs Ornith 1.5 35B A3BDeepReinforce
