Claude Opus 4.7 vs DeepSeek V3
2026 - Pricing, benchmarks, and use case comparison
Quick take
- •DeepSeek V3 is 98% cheaper on input tokens - better for high-volume workloads.
- •Claude Opus 4.7 has a 200K context window - 2x larger than DeepSeek V3's 128K. Better for long documents and large codebases.
- •DeepSeek V3 is open-source: fine-tune it, self-host it, or use any inference provider. Claude Opus 4.7 is closed-source.
Specs comparison
| Claude Opus 4.7 | DeepSeek V3 | |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Type | Closed source | Open source |
| Context window | ✓200K | 128K |
| Input / 1M tokens | $15.00 | ✓$0.27 |
| Output / 1M tokens | $75.00 | $1.10 |
| Release date | 2025-09 | 2024-12 |
Benchmarks
| Benchmark | Claude Opus 4.7 | DeepSeek V3 |
|---|---|---|
| GPQA Diamond | ~75% | - |
| MMLU | ~90% | 88.5% |
| HumanEval | ~95% | 90.2% |
| Aider Polyglot | - | 55.0% |
Scores sourced from official provider release posts.
Strengths
Claude Opus 4.7
- ✓Best-in-class multi-step reasoning
- ✓Strong scientific and mathematical analysis
- ✓Superior long-context comprehension
- ✓Highly accurate instruction following
- ✓Best Anthropic model for research and analysis
DeepSeek V3
- ✓Near-GPT-4o quality at a fraction of the price
- ✓Open weights - self-host or fine-tune freely
- ✓Efficient MoE architecture reduces inference cost
- ✓Strong coding (Aider polyglot, HumanEval)
- ✓Good instruction following and structured output
Which should you choose?
Choose Claude Opus 4.7 if you need...
- →Complex research tasks
- →High-stakes code generation
- →Long-document analysis
- →Scientific reasoning
Choose DeepSeek V3 if you need...
- →Cost-sensitive high-volume inference
- →Self-hosted deployments
- →Fine-tuning for specialized domains
- →Coding assistants