Claude Haiku 4.5 vs GPT-5 Mini
Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, GPT-5 Mini is cheaper by about $225.00/month.
| Claude Haiku 4.5 | GPT-5 Mini | |
|---|---|---|
| Intelligence | ||
| Arena · Overall(LMArena Elo — higher is better) | 1395✓ | 1373 |
| Arena rank (overall) | #79✓ | #85 |
| Arena · Coding | 1327 | 1388✓ |
| Arena · Math & reasoning | — | 1390✓ |
| Arena · Agentic / tool use | — | 1378✓ |
| Score evidence | Measured | Measured |
| Pricing (USD / 1M tokens) | ||
| Input | $1.00 | $0.2500✓ |
| Output | $5.00 | $2.00✓ |
| Cached input (read) | $0.1000 | $0.0250✓ |
| Cache write | $1.25✓ | — |
| Blended(3:1 input:output blend) | $2.00 | $0.6875✓ |
| Specs & capabilities | ||
| Provider | Anthropic | OpenAI |
| Context window | 200K (200,000)✓ | 128K (128,000) |
| Max output | 8,192 | 64,000✓ |
| Modalities | text | text, image |
| Vision | No | Yes |
| Tool use | Yes | Yes |
| Reasoning | No | Yes |
| Prompt caching | Yes | Yes |
| Batch pricing | Yes | Yes |
| Tokenizer | claude | o200k_base |
| Release date | — | — |
| Status | ga | ga |
Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 27 August 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.
Compare on your own workload
Claude Haiku 4.5 and GPT-5 Mini are pre-loaded. Adjust the tokens and monthly volume to see which is cheaper for your usage.
Used unless you set active users below.
Results update automatically as you type.
| GPT-5 Mini | OpenAI | $0.00125 | $125.00 | $1,500.00 | 128,000 |
| Claude Haiku 4.5 | Anthropic | $0.00350 | $350.00 | $4,200.00 | 200,000 |
FAQ
Which is cheaper, Claude Haiku 4.5 or GPT-5 Mini?
For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, GPT-5 Mini is cheaper, costing about $125.00/month versus $350.00/month.
What is the context window of Claude Haiku 4.5 and GPT-5 Mini?
Claude Haiku 4.5 supports 200,000 tokens, while GPT-5 Mini supports 128,000 tokens.
Estimates for planning only. Verify current pricing with each provider.