token.app › Compare › DeepSeek V4 Flash 0731 vs Grok 4.5
DeepSeek V4 Flash 0731 vs Grok 4.5
Grok 4.5 leads on 3 of 5 shared benchmarks. DeepSeek V4 Flash 0731 is 27× cheaper per token on a blended 3:1 basis. DeepSeek V4 Flash 0731 accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| DeepSeek V4 Flash 0731 | Grok 4.5 | |
|---|---|---|
| Provider | DeepSeek | xAI |
| Input $/1M | $0.090 | $2.00 |
| Output $/1M | $0.180 | $6.00 |
| Blended $/1M | $0.113 | $3.00 |
| Context window | 1.0M | 500K |
| Max output | 384K | — |
| Released | Jul 2026 | Jul 2026 |
| Licence | Open weights | Proprietary |
| GPQA Diamond | 91.0% | 93.4% |
| FrontierMath T1–3 | 57.5% | 57.2% |
| FrontierMath T4 | 24.4% | 24.4% |
| SimpleQA Verified | 34.7% | 53.5% |
| OTIS Mock AIME | 94.4% | 97.8% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.113 vs $3.00 blended
- Higher FrontierMath T1–3 (57.5% vs 57.2%)
- Larger context window (1.0M)
- Open weights — self-hostable
- Newer model (released Jul 2026)
Choose Grok 4.5 if…
- Higher GPQA Diamond (93.4% vs 91.0%)
- Higher SimpleQA Verified (53.5% vs 34.7%)
- Higher OTIS Mock AIME (97.8% vs 94.4%)
FAQ
Which is better, DeepSeek V4 Flash 0731 or Grok 4.5?
Across the 5 benchmarks both models have independently-run scores for, DeepSeek V4 Flash 0731 leads on 1 and Grok 4.5 leads on 3. Benchmarks are one input — price and context window are on this page too.
Is DeepSeek V4 Flash 0731 cheaper than Grok 4.5?
DeepSeek V4 Flash 0731 is cheaper: $0.113 versus $3.00 per million tokens blended at 3:1 input:output. Input alone: $0.090 vs $2.00. Output alone: $0.180 vs $6.00.
What context windows do DeepSeek V4 Flash 0731 and Grok 4.5 have?
DeepSeek V4 Flash 0731: 1,048,576 tokens. Grok 4.5: 500,000 tokens.
Who makes DeepSeek V4 Flash 0731 and Grok 4.5?
DeepSeek V4 Flash 0731 is made by DeepSeek. Grok 4.5 is made by xAI.
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