DeepSeek: DeepSeek V4 Flash 0423 vs SpaceXAI: Grok 4.5
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0423 ranks #4 overall — ahead of SpaceXAI: Grok 4.5 at #31. DeepSeek: DeepSeek V4 Flash 0423 is cheaper on input tokens at $0.14/1M vs $2/1M for SpaceXAI: Grok 4.5. DeepSeek: DeepSeek V4 Flash 0423 offers the larger context window at 1M tokens.
DeepSeek: DeepSeek V4 Flash 0423 vs SpaceXAI: Grok 4.5: which should you use?
Choose DeepSeek: DeepSeek V4 Flash 0423 if…
- It sees more real traffic — #4 overall on OpenRouter's weekly ranking, against #31 for SpaceXAI: Grok 4.5.
- Cheaper to read — $0.14 vs $2 per 1M input tokens, which is what dominates long-prompt and RAG workloads.
- Cheaper to write — $0.28 vs $6 per 1M output tokens, the line item that decides generation-heavy costs.
- Bigger context window — 1M vs 500K tokens.
Choose SpaceXAI: Grok 4.5 if…
- Higher Artificial Analysis agentic score — 48.9 vs 31.1.
- It accepts image, file 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 | SpaceXAI: Grok 4.5 |
|---|---|---|
| Author | deepseek | x-ai |
| Input price (per 1M tokens) | $0.14 | $2 |
| Output price (per 1M tokens) | $0.28 | $6 |
| Context window | 1M | 500K |
| Input modalities | text | text, image, file |
| Output modalities | text | text |
| AA Intelligence | — | 55.8 |
| AA Coding | — | 72.4 |
| AA Agentic | 31.1 | 48.9 |
| Released | Apr 2026 | Jul 2026 |
What DeepSeek: DeepSeek V4 Flash 0423 and SpaceXAI: Grok 4.5 actually cost to run
On a read-heavy job — 1M tokens in, 100K out — DeepSeek: DeepSeek V4 Flash 0423 costs $0.17 and SpaceXAI: Grok 4.5 costs $2.60.
Flip the shape — 100K in, 1M out — and it becomes $0.29 for DeepSeek: DeepSeek V4 Flash 0423 versus $6.20 for SpaceXAI: Grok 4.5.
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 | SpaceXAI: Grok 4.5 |
|---|---|---|
| Overall | #4 | #31 |
| 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 SpaceXAI: Grok 4.5
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...
SpaceXAI: Grok 4.5
Built by x-ai · released Jul 2026 · 500K-token context
Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.
Related comparisons
- DeepSeek: DeepSeek V4 Flash 0423 vs DeepSeek: DeepSeek V4 Flash 0731
- DeepSeek: DeepSeek V4 Flash 0423 vs Tencent: Hy3
- DeepSeek: DeepSeek V4 Flash 0423 vs OpenAI: GPT-5.6 Luna (batch)
- SpaceXAI: Grok 4.5 vs DeepSeek: DeepSeek V4 Flash 0731
- SpaceXAI: Grok 4.5 vs Tencent: Hy3
- SpaceXAI: Grok 4.5 vs OpenAI: GPT-5.6 Luna (batch)
Get notified when DeepSeek: DeepSeek V4 Flash 0423 or SpaceXAI: Grok 4.5 moves
Usage ranks and prices refresh weekly. We email you when they move — once a week, no spam.
FAQ
Which is better, DeepSeek: DeepSeek V4 Flash 0423 or SpaceXAI: Grok 4.5?
Based on weekly OpenRouter usage tracked by AI Tier List, DeepSeek: DeepSeek V4 Flash 0423 ranks #4 overall — ahead of SpaceXAI: Grok 4.5 at #31. DeepSeek: DeepSeek V4 Flash 0423 is cheaper on input tokens at $0.14/1M vs $2/1M for SpaceXAI: Grok 4.5. DeepSeek: DeepSeek V4 Flash 0423 offers the larger context window at 1M tokens.
Which is cheaper, DeepSeek: DeepSeek V4 Flash 0423 or SpaceXAI: Grok 4.5?
DeepSeek: DeepSeek V4 Flash 0423 is cheaper at $0.14 per 1M input tokens. Output pricing: DeepSeek: DeepSeek V4 Flash 0423 $0.28, SpaceXAI: Grok 4.5 $6.
Is DeepSeek: DeepSeek V4 Flash 0423 still ahead of SpaceXAI: Grok 4.5 right now?
Yes. For the week of 2026-08-10, DeepSeek: DeepSeek V4 Flash 0423 ranks #4 overall on OpenRouter usage against #31 for SpaceXAI: Grok 4.5. 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.