Claude 3.5 Haiku vs GPT-4o mini API Pricing & Speed Benchmark (2026)
Compare Anthropic Claude 3.5 Haiku ($0.80/$4.00) vs OpenAI GPT-4o mini ($0.15/$0.60): coding IQ (SWE-bench), agentic tool calling, latency, and prompt caching economics.
Claude 3.5 Haiku
OpenAI GPT-4o mini
Head-to-Head Monthly Cost Simulator
Simulate real workload expenditures for Claude 3.5 Haiku vs OpenAI GPT-4o mini at your expected token volume.
Comprehensive Technical & Financial Breakdown
Side-by-side audit of pricing tiers, token speeds, benchmark intelligence, and architecture limits.
| Specification / Metric | Claude 3.5 Haiku | OpenAI GPT-4o mini | Financial & Engineering Impact |
|---|---|---|---|
| Input Price / 1M | $0.80 | $0.15 | GPT-4o mini is 81% cheaper |
| Output Price / 1M | $4.00 | $0.60 | GPT-4o mini is 85% cheaper |
| Cached Read / 1M | $0.08 (90% off) | $0.075 (50% off) | Nearly identical cached input cost |
| Context Window | 200,000 tokens | 128,000 tokens | Claude 3.5 Haiku offers 56% larger context |
| SWE-bench Verified | 40.6% | 20.7% | Claude 3.5 Haiku nearly doubles coding ability |
| Throughput Speed | 120 tok/s | 100 tok/s | Claude 3.5 Haiku is slightly faster |
| Vision & Multimodal | Text Only | Text + Vision | GPT-4o mini natively inspects images |
Choose **Claude 3.5 Haiku** if your workload involves software engineering, complex tool-use loops, or agentic automation, where its 40.6% SWE-bench score dramatically reduces downstream error loops. Choose **GPT-4o mini** for high-volume categorization, summarization, vision inspection, or strictly budget-constrained production services.
Frequently Asked Questions: Claude 3.5 Haiku vs OpenAI GPT-4o mini
Real-world answers covering token budgeting, prompt caching, latency, and SLA differences.
Why is Claude 3.5 Haiku priced higher than GPT-4o mini?
Claude 3.5 Haiku was engineered to match original GPT-4 frontier intelligence in a compact size, achieving a 40.6% SWE-bench score. GPT-4o mini is optimized primarily for micro-cost efficiency ($0.15/$0.60).
How does prompt caching change the economics between Haiku and Mini?
Anthropic's 90% prompt caching discount lowers Haiku's input price to $0.08/M, which is virtually identical to GPT-4o mini's $0.075/M cached rate. In high-cache agent loops, the price difference is largely confined to output tokens.
Does Claude 3.5 Haiku support function calling?
Yes, Claude 3.5 Haiku provides robust, deterministic tool calling and structured schema execution.