$ diff deepseek-v4-flash grok-4-5
DeepSeek V4-Flash vs Grok 4.5
Values come from DeepSeek V4-Flash and Grok 4.5, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
DeepSeekDeepSeek V4-Flash
- context
- —
- weights
- open
- $/M in
- $0.14
- $/M out
- $0.28
- context
- 500K
- weights
- —
- $/M in
- $2
- $/M out
- $6
What actually differs
- Input price
- DeepSeek V4-Flash at $0.14/M against $2/M — 14.3× cheaper to feed. Standard rates: one of these labs also quotes a lower cached-input tier, which applies only when a prefix is reused — see the full spec below.
- Output price
- DeepSeek V4-Flash at $0.28/M against $6/M — 21.4× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
- Recency
- DeepSeek V4-Flash shipped 22 days after Grok 4.5 (2026-07-31 vs 2026-07-09).
Full spec
| Attribute | DeepSeek V4-Flash | Grok 4.5 |
|---|---|---|
| Developer | DeepSeek | xAI |
| Released | 2026-07-31 | 2026-07-09 |
| Context window | not recorded | 500K tokens |
| Pricing | $0.14/M input (cache miss) · $0.0028/M input (cache hit) · $0.28/M output — see Conflicting Reports | $2/M input · $6/M output |
| License | MIT (open-weight) | not recorded |
| Availability | DeepSeek API (Responses format, Codex-adapted), Hugging Face (`deepseek-ai/DeepSeek-V4-Flash-0731`) | Grok Build (default model), Cursor (all plans), SpaceXAI console/API; not in EU (regulatory review pending as of 2026-07-09) |