Claude Haiku 4.5 vs GPT-4o
Pricing, benchmarks, and use case comparison
Quick take
- •Claude Haiku 4.5 is meaningfully stronger at long context (70 vs 55 on our capability index).
- •Claude Haiku 4.5 is 60% cheaper on input tokens, which compounds fast on high-volume or agentic workloads.
- •Claude Haiku 4.5 has a 200K context window vs 128,000 tokens (16,384 max output) - better for whole-repo or long-document work.
Specs comparison
| Claude Haiku 4.5 | GPT-4o | |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Type | Closed source | Closed source |
| Context window | ✓200K | 128,000 tokens (16,384 max output) |
| Input / 1M tokens | ✓$1.00 | $2.50 |
| Output / 1M tokens | $5.00 | $10.00 |
| Release date | 2025-10 | 2024-05 |
Benchmarks
| Benchmark | Claude Haiku 4.5 | GPT-4o |
|---|---|---|
| SWE-bench Verified | 73.3% | - |
| GPQA | 64.6% | - |
| MMLU Pro | 80.0% | - |
| MMLU | - | 88.7% |
| HumanEval | - | 90.2% |
| MATH | - | 76.6% |
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 GPT-4o if...
- →Everyday assistant, drafting, summarization, and classification tasks
- →Latency- and cost-sensitive applications at scale
- →Multimodal tasks needing image understanding with fast responses