claude-sonnet-4-5 vs deepseek-ai/DeepSeek-R1
Side-by-side comparison of claude-sonnet-4-5 and deepseek-ai/DeepSeek-R1 — benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. deepseek-ai/DeepSeek-R1 outperforms claude-sonnet-4-5 on 5 of 7 shared benchmarks.
claude-sonnet-4-5
Input / 1M
$3.00
Output / 1M
$15.00
Context
1M
Model ID
anthropic/claude-sonnet-4-5
deepseek-ai/DeepSeek-R1
Input / 1M
$3.00
Output / 1M
$7.00
Context
64K
Model ID
together/deepseek-ai/DeepSeek-R1
Benchmark comparison
MMLU Proknowledge
claude-sonnet-4-583.8%
deepseek-ai/DeepSeek-R185.0%
GPQA Diamondreasoning
claude-sonnet-4-574.2%
deepseek-ai/DeepSeek-R171.5%
HumanEvalcoding
claude-sonnet-4-592.0%
deepseek-ai/DeepSeek-R192.0%
SWE-Bench Verifiedcoding
claude-sonnet-4-570.8%
deepseek-ai/DeepSeek-R149.2%
MATHmath
claude-sonnet-4-587.5%
deepseek-ai/DeepSeek-R192.2%
AIME 2024math
claude-sonnet-4-576.1%
deepseek-ai/DeepSeek-R179.8%
MMMUmultimodal
claude-sonnet-4-573.1%
deepseek-ai/DeepSeek-R174.8%
LiveBenchreasoning
claude-sonnet-4-569.5%
deepseek-ai/DeepSeek-R171.5%
τ-bench Retailagentic
claude-sonnet-4-567.3%
deepseek-ai/DeepSeek-R1—
Scores sourced from official model cards, Artificial Analysis, and public leaderboards. Benchmarks measure specific skills and don't capture every aspect of model quality.
Pricing & specifications
| claude-sonnet-4-5 | deepseek-ai/DeepSeek-R1 | |
|---|---|---|
| Input price / 1M | $3.00 | $3.00 |
| Output price / 1M | $15.00 | $7.00 |
| Context window | 1M tokens | 64K tokens |
| Max output | 64K tokens | 8K tokens |
| Vision input | Yes | — |
| Tool calling | Yes | — |
| Reasoning | Yes | — |
| Prompt caching | Yes | — |
| Computer use | Yes | — |
| Provider | Anthropic PBC | Together AI Inc. |
Questions people ask
Is claude-sonnet-4-5 better than deepseek-ai/DeepSeek-R1?
deepseek-ai/DeepSeek-R1 outperforms claude-sonnet-4-5 on 5 of 7 shared benchmarks. See the benchmark comparison above for specifics — claude-sonnet-4-5 and deepseek-ai/DeepSeek-R1 have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper — claude-sonnet-4-5 or deepseek-ai/DeepSeek-R1?
deepseek-ai/DeepSeek-R1 is cheaper. claude-sonnet-4-5 costs $3.00/$15.00 per 1M input/output tokens, while deepseek-ai/DeepSeek-R1 costs $3.00/$7.00.
Can I use claude-sonnet-4-5 and deepseek-ai/DeepSeek-R1 through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch — "anthropic/claude-sonnet-4-5" or "together/deepseek-ai/DeepSeek-R1" — no other code changes needed.
What are the context windows?
claude-sonnet-4-5 supports up to 1M tokens of context. deepseek-ai/DeepSeek-R1 supports up to 64K tokens. Longer context means you can feed larger documents or codebases in a single prompt, though quality often degrades past 128K for most models.
Switch between claude-sonnet-4-5 and deepseek-ai/DeepSeek-R1 with one line of code
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