Claude Haiku 4.5 vs Gemini 2.5 Pro
2026 - Pricing, benchmarks, and use case comparison
Quick take
- •Claude Haiku 4.5 is 36% cheaper on input tokens - better for high-volume workloads.
- •Gemini 2.5 Pro has a 1M context window - 5x larger than Claude Haiku 4.5's 200K. Better for long documents and large codebases.
Specs comparison
| Claude Haiku 4.5 | Gemini 2.5 Pro | |
|---|---|---|
| Provider | Anthropic | Google DeepMind |
| Type | Closed source | Closed source |
| Context window | 200K | ✓1M |
| Input / 1M tokens | ✓$0.80 | $1.25 |
| Output / 1M tokens | $4.00 | $10.00 |
| Release date | 2025-10 | 2025-03 |
Benchmarks
| Benchmark | Claude Haiku 4.5 | Gemini 2.5 Pro |
|---|---|---|
| MMLU | ~82% | 90.9% |
| HumanEval | ~88% | - |
| GPQA Diamond | - | 86.4% |
| SWE-bench Verified | - | 63.2% |
Scores sourced from official provider release posts.
Strengths
Claude Haiku 4.5
- ✓Lowest latency in the Claude lineup
- ✓Extremely cost-effective at scale
- ✓Strong at classification and extraction
- ✓Good at following structured output schemas
- ✓Handles 200K context at low cost
Gemini 2.5 Pro
- ✓Largest commercial context window (1M tokens)
- ✓Top benchmark scores on science and math
- ✓Strong multimodal: video, audio, images
- ✓Competitive pricing for the capability tier
- ✓Native Google Search and code execution tools
Which should you choose?
Choose Claude Haiku 4.5 if you need...
- →High-volume API pipelines
- →Real-time classification
- →Form and document extraction
- →Low-latency chatbots
Choose Gemini 2.5 Pro if you need...
- →Very long document analysis
- →Video and multimodal understanding
- →Scientific research tasks
- →Large codebase comprehension