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Claude Haiku 4.5 vs GPT-4o Mini

Complete pricing and performance comparison between Anthropic's Claude Haiku 4.5 and OpenAI's GPT-4o Mini.

Quick Verdict

Cheaper
GPT-4o Mini
6.7x cheaper input, 8.3x cheaper output
Larger Context
Claude Haiku 4.5
200K vs 128K
Higher Quality
Claude Haiku 4.5
Score: 31 vs 13
Faster
Claude Haiku 4.5
125 vs 61 tok/s

Pricing Comparison

SpecClaude Haiku 4.5GPT-4o MiniDifference
ProviderAnthropicOpenAI
Input / 1M tokens$1$0.15GPT-4o Mini is 85% more expensive
Output / 1M tokens$5$0.6GPT-4o Mini is 88% more expensive
Context Window200K128K2x difference
Max Output8K16K
Tokenizercl100k_baseo200k_base

Performance Benchmarks

MetricClaude Haiku 4.5GPT-4o MiniWinner
Quality Index3113Claude Haiku 4.5
Output Speed125 tok/s61 tok/sClaude Haiku 4.5
Time to First Token0.41s0.58sClaude Haiku 4.5
Value (Quality/$)31.184.0Higher = 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).

UsageClaude Haiku 4.5GPT-4o MiniSavings
Single request
1K in / 300 out
$0.0025$0.0003GPT-4o Mini saves $0.0022
10 requests
10K in / 3K out
$0.025$0.0033GPT-4o Mini saves $0.022
100 requests
100K in / 30K out
$0.250$0.033GPT-4o Mini saves $0.217
1,000 requests
1M in / 300K out
$2.50$0.330GPT-4o Mini saves $2.17
10,000 requests
10M in / 3M out
$25.00$3.30GPT-4o Mini saves $21.70
1M requests/mo
1B in / 300M out
$2500.00$330.00GPT-4o Mini saves $2170.00

Pros & Cons

Claude Haiku 4.5 Strengths

  • +Larger context window (200K vs 128K)
  • +Faster output (125 vs 61 tok/s)
  • +Higher quality score (31 vs 13)
  • +Lower latency (faster first token)

GPT-4o Mini Strengths

  • +Cheaper input tokens
  • +Cheaper output tokens
  • +Higher max output tokens

When to Use Each Model

Choose Claude Haiku 4.5 for

  • →Long documents, large codebases, or multi-turn conversations
  • →Tasks requiring maximum accuracy and reasoning
  • →Real-time applications, chat, or autocomplete

Choose GPT-4o Mini for

  • →Budget-conscious projects where cost is the primary factor
  • →Generating long-form content or detailed code

Frequently Asked Questions

Which is cheaper, Claude Haiku 4.5 or GPT-4o Mini?
For input tokens, GPT-4o Mini is 6.7x cheaper at $0.15/1M tokens. For output tokens, GPT-4o Mini is 8.3x cheaper at $0.6/1M tokens. At typical usage (1M input + 300K output), Claude Haiku 4.5 costs $2.50 vs GPT-4o Mini at $0.330.
What's the context window difference?
Claude Haiku 4.5 supports 200K context (200,000 tokens), while GPT-4o Mini 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 Mini at 13. Speed: Claude Haiku 4.5 generates 125 tok/s vs GPT-4o Mini at 61 tok/s. Time to first token: Claude Haiku 4.5 at 0.41s vs GPT-4o Mini at 0.58s.
When should I choose Claude Haiku 4.5 over GPT-4o Mini?
Choose Claude Haiku 4.5 when you need: Larger context window (200K vs 128K), Faster output (125 vs 61 tok/s), Higher quality score (31 vs 13), Lower latency (faster first token). Choose GPT-4o Mini when you need: Cheaper input tokens, Cheaper output tokens, Higher max output tokens.
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 Mini = $3.30. At 10K input + 1K output per request (longer conversations): Claude Haiku 4.5 = $150.00, GPT-4o Mini = $21.00.

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Claude Haiku 4.5 DetailsGPT-4o Mini DetailsFull Pricing TableCost Calculator