Claude Haiku 4.5 vs GPT-4o
Complete pricing and performance comparison between Anthropic's Claude Haiku 4.5 and OpenAI's GPT-4o.
Quick Verdict
Cheaper
Claude Haiku 4.5
2.5x cheaper input, 2.0x cheaper output
Larger Context
Claude Haiku 4.5
200K vs 128K
Higher Quality
Claude Haiku 4.5
Score: 31 vs 17
Faster
GPT-4o
135 vs 125 tok/s
Pricing Comparison
| Spec | Claude Haiku 4.5 | GPT-4o | Difference |
|---|---|---|---|
| Provider | Anthropic | OpenAI | |
| Input / 1M tokens | $1 | $2.5 | Claude Haiku 4.5 is 60% more expensive |
| Output / 1M tokens | $5 | $10 | Claude Haiku 4.5 is 50% more expensive |
| Context Window | 200K | 128K | 2x difference |
| Max Output | 8K | 16K | |
| Tokenizer | cl100k_base | o200k_base |
Performance Benchmarks
| Metric | Claude Haiku 4.5 | GPT-4o | Winner |
|---|---|---|---|
| Quality Index | 31 | 17 | Claude Haiku 4.5 |
| Output Speed | 125 tok/s | 135 tok/s | GPT-4o |
| Time to First Token | 0.41s | 0.53s | Claude Haiku 4.5 |
| Value (Quality/$) | 31.1 | 6.9 | Higher = better value |
Benchmark data from Artificial Analysis. Quality Index is a composite score across reasoning, coding, and knowledge tasks.
Cost at Scale
Estimated cost at different usage levels (3:1 input-to-output token ratio, typical for chat).
| Usage | Claude Haiku 4.5 | GPT-4o | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0025 | $0.0055 | Claude Haiku 4.5 saves $0.0030 |
10 requests 10K in / 3K out | $0.025 | $0.055 | Claude Haiku 4.5 saves $0.030 |
100 requests 100K in / 30K out | $0.250 | $0.550 | Claude Haiku 4.5 saves $0.300 |
1,000 requests 1M in / 300K out | $2.50 | $5.50 | Claude Haiku 4.5 saves $3.00 |
10,000 requests 10M in / 3M out | $25.00 | $55.00 | Claude Haiku 4.5 saves $30.00 |
1M requests/mo 1B in / 300M out | $2500.00 | $5500.00 | Claude Haiku 4.5 saves $3000.00 |
Pros & Cons
Claude Haiku 4.5 Strengths
- +Cheaper input tokens
- +Cheaper output tokens
- +Larger context window (200K vs 128K)
- +Higher quality score (31 vs 17)
- +Lower latency (faster first token)
GPT-4o Strengths
- +Higher max output tokens
- +Faster output (135 vs 125 tok/s)
When to Use Each Model
Choose Claude Haiku 4.5 for
- →Budget-conscious projects where cost is the primary factor
- →Long documents, large codebases, or multi-turn conversations
- →Tasks requiring maximum accuracy and reasoning
Choose GPT-4o for
- →Generating long-form content or detailed code
- →Real-time applications, chat, or autocomplete
Frequently Asked Questions
Which is cheaper, Claude Haiku 4.5 or GPT-4o?
For input tokens, Claude Haiku 4.5 is 2.5x cheaper at $1/1M tokens. For output tokens, Claude Haiku 4.5 is 2.0x cheaper at $5/1M tokens. At typical usage (1M input + 300K output), Claude Haiku 4.5 costs $2.50 vs GPT-4o at $5.50.
What's the context window difference?
Claude Haiku 4.5 supports 200K context (200,000 tokens), while GPT-4o supports 128K (128,000 tokens). Claude Haiku 4.5 can handle 2x more context in a single request.
Which model has better benchmarks?
Quality Index: Claude Haiku 4.5 scores 31 vs GPT-4o at 17. Speed: Claude Haiku 4.5 generates 125 tok/s vs GPT-4o at 135 tok/s. Time to first token: Claude Haiku 4.5 at 0.41s vs GPT-4o at 0.53s.
When should I choose Claude Haiku 4.5 over GPT-4o?
Choose Claude Haiku 4.5 when you need: Cheaper input tokens, Cheaper output tokens, Larger context window (200K vs 128K), Higher quality score (31 vs 17), Lower latency (faster first token). Choose GPT-4o when you need: Higher max output tokens, Faster output (135 vs 125 tok/s).
How much would 10,000 API requests cost?
At 1K input + 300 output tokens per request (typical chat): Claude Haiku 4.5 = $25.00, GPT-4o = $55.00. At 10K input + 1K output per request (longer conversations): Claude Haiku 4.5 = $150.00, GPT-4o = $350.00.