token.app › Compare › R1 0528 vs Claude Opus 5
R1 0528 vs Claude Opus 5
Claude Opus 5 leads on 2 of 2 shared benchmarks. R1 0528 is 11× cheaper per token on a blended 3:1 basis. Claude Opus 5 accepts the larger context window (1M).
Head to head
Blended price uses a 3:1 input:output mix
| R1 0528 | Claude Opus 5 | |
|---|---|---|
| Provider | DeepSeek | Anthropic |
| Input $/1M | $0.500 | $5.00 |
| Output $/1M | $2.15 | $25.00 |
| Blended $/1M | $0.912 | $10.00 |
| Context window | 164K | 1M |
| Max output | 33K | 128K |
| Released | May 2025 | Jul 2026 |
| Licence | Open weights | Proprietary |
| GPQA Diamond | 76.3% | 93.9% |
| OTIS Mock AIME | 66.4% | 98.9% |
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 R1 0528 if…
- Costs less per token — $0.912 vs $10.00 blended
- Open weights — self-hostable
Choose Claude Opus 5 if…
- Higher GPQA Diamond (93.9% vs 76.3%)
- Higher OTIS Mock AIME (98.9% vs 66.4%)
- Larger context window (1M)
- Newer model (released Jul 2026)
FAQ
Which is better, R1 0528 or Claude Opus 5?
Across the 2 benchmarks both models have independently-run scores for, R1 0528 leads on 0 and Claude Opus 5 leads on 2. Benchmarks are one input — price and context window are on this page too.
Is R1 0528 cheaper than Claude Opus 5?
R1 0528 is cheaper: $0.912 versus $10.00 per million tokens blended at 3:1 input:output. Input alone: $0.500 vs $5.00. Output alone: $2.15 vs $25.00.
What context windows do R1 0528 and Claude Opus 5 have?
R1 0528: 163,840 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes R1 0528 and Claude Opus 5?
R1 0528 is made by DeepSeek. Claude Opus 5 is made by Anthropic.