Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding…
Model details →Anthropic: Claude Opus 4.5 (batch) vs DeepSeek: R1 0528
Anthropic: Claude Opus 4.5 (batch) and DeepSeek: R1 0528 are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
May 28th update to the [original DeepSeek R1](/deepseek/deepseek-r1) Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active...
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Opus 4.5 (batch) | DeepSeek: R1 0528 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 200K | 164K | 🏆 Anthropic: Claude Opus 4.5 (batch) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.50 | $0.50 | 🏆 DeepSeek: R1 0528 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $12.50 | $2.15 | 🏆 DeepSeek: R1 0528 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | — | 🏆 Anthropic: Claude Opus 4.5 (batch) |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Opus 4.5 (batch) better than DeepSeek: R1 0528?
Anthropic: Claude Opus 4.5 (batch) and DeepSeek: R1 0528 are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Anthropic: Claude Opus 4.5 (batch) and DeepSeek: R1 0528?
Input: $2.50 vs $0.50 per 1M tokens. Output: $12.50 vs $2.15 per 1M tokens.
What context windows do Anthropic: Claude Opus 4.5 (batch) and DeepSeek: R1 0528 support?
Anthropic: Claude Opus 4.5 (batch) supports up to 200K tokens. DeepSeek: R1 0528 supports up to 164K tokens.
Do both Anthropic: Claude Opus 4.5 (batch) and DeepSeek: R1 0528 support tool calling?
Anthropic: Claude Opus 4.5 (batch): yes. DeepSeek: R1 0528: yes.