Claude Haiku 4.5 vs Gemini 3.1 Flash-Lite — LLM API Cost Comparison
Compare Claude Haiku 4.5 (Anthropic) vs Gemini 3.1 Flash-Lite (Google) on cost per million tokens, context window, and monthly spend.
Prices verified 2026-05-23 · Pricing may change — use the calculator for current estimates
- Input
- $1/1M tokens
- Output
- $5/1M tokens
- Context
- 200K tokens
- Released
- 2025-10
Fastest Anthropic model; near-frontier intelligence
- Input
- $0.25/1M tokens
- Output
- $1.5/1M tokens
- Context
- 1M tokens
- Released
- 2026-04
Most cost-efficient Gemini; high-volume agentic tasks
Monthly Cost by Usage Tier (70% input / 30% output ratio)
| Usage | Claude Haiku 4.5 | Gemini 3.1 Flash-Lite | Cheaper by |
|---|---|---|---|
| Light (1M tokens) | $2.20 | $0.625 | Gemini 3.1 Flash-Lite (72%) |
| Moderate (10M tokens) | $22.00 | $6.25 | Gemini 3.1 Flash-Lite (72%) |
| Heavy (100M tokens) | $220 | $62.50 | Gemini 3.1 Flash-Lite (72%) |
| Very Heavy (1B tokens) | $2,200 | $625 | Gemini 3.1 Flash-Lite (72%) |
Frequently Asked Questions
Which is cheaper — Claude Haiku 4.5 or Gemini 3.1 Flash-Lite?
For input tokens, Gemini 3.1 Flash-Lite is cheaper at $0.25/1M tokens — 4.0× less than $1/1M. For output tokens, Gemini 3.1 Flash-Lite wins at $1.5/1M vs $5/1M. At heavy workloads (100M tokens/month), the cost difference can be significant.
What is the context window difference between Claude Haiku 4.5 and Gemini 3.1 Flash-Lite?
Claude Haiku 4.5 supports 200,000 tokens per request; Gemini 3.1 Flash-Lite supports 1,000,000 tokens. Gemini 3.1 Flash-Lite wins on context length, making it better for long documents, large codebases, or extended conversations without chunking.
When should I choose Claude Haiku 4.5 over Gemini 3.1 Flash-Lite?
Choose Claude Haiku 4.5 (Anthropic) if you prefer Anthropic's ecosystem, tooling, or reliability track record. Fastest Anthropic model; near-frontier intelligence. Choose Gemini 3.1 Flash-Lite (Google) if Most cost-efficient Gemini; high-volume agentic tasks. the price/performance fits your workload better. Use this calculator to find the break-even point for your exact token volume.
How much does 1 billion tokens cost on Claude Haiku 4.5 vs Gemini 3.1 Flash-Lite?
At 700M input + 300M output tokens (1B total): Claude Haiku 4.5 costs $2200; Gemini 3.1 Flash-Lite costs $625. The difference is $1575/billion tokens at this 70/30 input/output ratio.