Claude Haiku 4.5 vs Gemini 2.5 Pro
Pricing, benchmarks, and use case comparison
Quick take
- •Claude Haiku 4.5 is meaningfully stronger at speed (98 vs 65 on our capability index).
- •Gemini 2.5 Pro is meaningfully stronger at long context (90 vs 70).
- •Claude Haiku 4.5 has a 200K context window vs 1,048,576 tokens (1M) input; up to 65K output - better for whole-repo or long-document work.
Specs comparison
| Claude Haiku 4.5 | Gemini 2.5 Pro | |
|---|---|---|
| Provider | Anthropic | Google DeepMind |
| Type | Closed source | Closed source |
| Context window | ✓200K | 1,048,576 tokens (1M) input; up to 65K output |
| Input / 1M tokens | ✓$1.00 | $1.25 |
| Output / 1M tokens | $5.00 | $10.00 |
| Release date | 2025-10 | 2025-06 |
Benchmarks
| Benchmark | Claude Haiku 4.5 | Gemini 2.5 Pro |
|---|---|---|
| SWE-bench Verified | 73.3% | - |
| GPQA | 64.6% | - |
| MMLU Pro | 80.0% | - |
| Context window | - | 1M tokens |
| Pricing tier break | - | 200K tokens |
Scores sourced from official provider release posts and independent benchmark aggregators.
Which should you choose?
Choose Claude Haiku 4.5 if...
- →You need high throughput and low latency at minimal cost
- →You are fanning out many parallel sub-agents or worker calls
- →You want solid coding/computer-use quality without Opus/Sonnet pricing
- →Your task fits comfortably within a 200K context window
Choose Gemini 2.5 Pro if...
- →Complex reasoning, analysis, or STEM tasks that benefit from a thinking model
- →Processing very long inputs (long documents, large repos)
- →Multimodal tasks needing high quality