DeepSeek: DeepSeek V4 Flash 0423 vs OpenAI: GPT-5.6 Sol (batch)
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0423 ranks #4 overall — ahead of OpenAI: GPT-5.6 Sol (batch) at #19. DeepSeek: DeepSeek V4 Flash 0423 is cheaper on input tokens at $0.14/1M vs $2.50/1M for OpenAI: GPT-5.6 Sol (batch). OpenAI: GPT-5.6 Sol (batch) offers the larger context window at 1.1M tokens.
DeepSeek: DeepSeek V4 Flash 0423 vs OpenAI: GPT-5.6 Sol (batch): which should you use?
Choose DeepSeek: DeepSeek V4 Flash 0423 if…
- It sees more real traffic — #4 overall on OpenRouter's weekly ranking, against #19 for OpenAI: GPT-5.6 Sol (batch).
- Cheaper to read — $0.14 vs $2.50 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
- Cheaper to write — $0.28 vs $15 per 1M output tokens, the line item that decides generation-heavy costs.
Choose OpenAI: GPT-5.6 Sol (batch) if…
- Bigger context window — 1.1M vs 1M tokens.
- It accepts file, image input, which DeepSeek: DeepSeek V4 Flash 0423 does not.
- It is the newer model — released Jul 2026 against Apr 2026.
Spec Comparison
| Spec | DeepSeek: DeepSeek V4 Flash 0423 | OpenAI: GPT-5.6 Sol (batch) |
|---|---|---|
| Author | deepseek | openai |
| Input price (per 1M tokens) | $0.14 | $2.50 |
| Output price (per 1M tokens) | $0.28 | $15 |
| Context window | 1M | 1.1M |
| Input modalities | text | file, image, text |
| Output modalities | text | text |
| AA Intelligence | — | — |
| AA Coding | — | 78.3 |
| AA Agentic | 31.1 | — |
| Released | Apr 2026 | Jul 2026 |
What DeepSeek: DeepSeek V4 Flash 0423 and OpenAI: GPT-5.6 Sol (batch) actually cost to run
On a read-heavy job — 1M tokens in, 100K out — DeepSeek: DeepSeek V4 Flash 0423 costs $0.17 and OpenAI: GPT-5.6 Sol (batch) costs $4.00.
Flip the shape — 100K in, 1M out — and it becomes $0.29 for DeepSeek: DeepSeek V4 Flash 0423 versus $15 for OpenAI: GPT-5.6 Sol (batch).
Both figures are the published per-token rates multiplied out; caching and batch discounts are not included.
Usage Rank by Task
| Task | DeepSeek: DeepSeek V4 Flash 0423 | OpenAI: GPT-5.6 Sol (batch) |
|---|---|---|
| Overall | #4 | #19 |
| Memory Extraction | #2 | — |
| Multi-step Planning | #1 | — |
| Tool Dispatch | #1 | — |
| Web Search | #1 | — |
| Agent Workflows | #3 | — |
| Classification & Tagging | #1 | — |
| Debugging | #4 | — |
| DevOps Config | #5 | — |
| File Read/Write | #4 | — |
| Frontend UI | #4 | — |
| Code Implementation | #6 | — |
| Repo Analysis | #4 | — |
| Code Review & Security | #4 | — |
| Shell Execution | #7 | — |
About DeepSeek: DeepSeek V4 Flash 0423 and OpenAI: GPT-5.6 Sol (batch)
DeepSeek: DeepSeek V4 Flash 0423
Built by deepseek · released Apr 2026 · 1M-token context
DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window. It is designed for fast inference and...
OpenAI: GPT-5.6 Sol (batch)
Built by openai · released Jul 2026 · 1.1M-token context
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Related comparisons
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- DeepSeek: DeepSeek V4 Flash 0423 vs OpenAI: GPT-5.6 Luna (batch)
- OpenAI: GPT-5.6 Sol (batch) vs DeepSeek: DeepSeek V4 Flash 0731
- OpenAI: GPT-5.6 Sol (batch) vs Tencent: Hy3
- OpenAI: GPT-5.6 Sol (batch) vs OpenAI: GPT-5.6 Luna (batch)
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FAQ
Which is better, DeepSeek: DeepSeek V4 Flash 0423 or OpenAI: GPT-5.6 Sol (batch)?
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0423 ranks #4 overall — ahead of OpenAI: GPT-5.6 Sol (batch) at #19. DeepSeek: DeepSeek V4 Flash 0423 is cheaper on input tokens at $0.14/1M vs $2.50/1M for OpenAI: GPT-5.6 Sol (batch). OpenAI: GPT-5.6 Sol (batch) offers the larger context window at 1.1M tokens.
Which is cheaper, DeepSeek: DeepSeek V4 Flash 0423 or OpenAI: GPT-5.6 Sol (batch)?
DeepSeek: DeepSeek V4 Flash 0423 is cheaper at $0.14 per 1M input tokens. Output pricing: DeepSeek: DeepSeek V4 Flash 0423 $0.28, OpenAI: GPT-5.6 Sol (batch) $15.
Is DeepSeek: DeepSeek V4 Flash 0423 still ahead of OpenAI: GPT-5.6 Sol (batch) right now?
Yes. For the week of 2026-08-10, DeepSeek: DeepSeek V4 Flash 0423 ranks #4 overall on OpenRouter usage against #19 for OpenAI: GPT-5.6 Sol (batch). Ranks refresh weekly, and the verdict on this page flips if they cross.
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.