Claude Haiku 5.5 vs Gemini 2.5 Flash-Lite: price, context and capabilities

Choose Claude Haiku 5.5 for reasoning over long documents, the latest release and the most recent knowledge. Choose Gemini 2.5 Flash-Lite for high-volume, cost-sensitive work and writing and code generation.

In short

  • Gemini 2.5 Flash-Lite is 13% cheaper than Claude Haiku 5.5 at the headline price ($0.175 / 1M tokens vs $0.20 / 1M tokens).
  • Gemini 2.5 Flash-Lite reads more per request: 1.05M tokens against 1M.
  • Claude Haiku 5.5 is the newer model (October 2026, against July 2025).

Open in the full comparison table

What a month costsAt 20 million input and 5 million output tokens a month.
  1. Claude Haiku 5.5Anthropic$4.50
  2. Gemini 2.5 Flash-LiteGoogle$4.00

Try your own volumes in the calculator

Which should you choose?

Each answer below comes straight from the published prices, specifications and independent benchmark results.

High-volume, cost-sensitive work

Choose Gemini 2.5 Flash-Lite

Gemini 2.5 Flash-Lite costs 13% less on a typical mix of three input tokens for every output token ($0.18 against $0.20 per million tokens).

Writing and code generation

Choose Gemini 2.5 Flash-Lite

Gemini 2.5 Flash-Lite charges $0.40 per million output tokens, against $0.50 for Claude Haiku 5.5. Output dominates the bill when answers are long.

Reasoning over long documents

Choose Claude Haiku 5.5

Claude Haiku 5.5 scores 82.7% on Long-context reasoning (AA-LCR), against 32% for Gemini 2.5 Flash-Lite.

Latest release

Choose Claude Haiku 5.5

Claude Haiku 5.5 is the newer release (October 2026, against July 2025 for Gemini 2.5 Flash-Lite).

Most recent knowledge

Choose Claude Haiku 5.5

Claude Haiku 5.5 was trained on data up to June 2026, against January 2025 for Gemini 2.5 Flash-Lite.

Monthly cost at three volumes

VolumeClaude Haiku 5.5Gemini 2.5 Flash-LiteDifference
Prototype: 1M input, 250K output tokens $0.23 $0.20 Gemini 2.5 Flash-Lite, $0.03 less
Production: 20M input, 5M output tokens $4.50 $4.00 Gemini 2.5 Flash-Lite, $0.50 less
Scale: 500M input, 100M output tokens $100.00 $90.00 Gemini 2.5 Flash-Lite, $10.00 less

Standard rates, without caching or batch discounts. Volumes are per month.

Specifications side by side

Claude Haiku 5.5Gemini 2.5 Flash-Lite
ProviderAnthropicGoogle
CategoryLanguage modelsLanguage models
StatusGenerally availableLegacy
Headline price$0.20 / 1M tokens$0.175 / 1M tokens
Input$0.10 / 1M tokens$0.10 / 1M tokens
Output$0.50 / 1M tokens$0.40 / 1M tokens
Cached input$0.01 / 1M tokens$0.01 / 1M tokens
Context window1M1.05M
Max output128k66k
ReleasedOctober 2026July 2025
Knowledge cutoffJune 2026January 2025
LicenceProprietaryProprietary
CapabilitiesVision, Reasoning, Tool calling, Structured output, Prompt caching, Batch APIVision, Reasoning, Tool calling, Structured output, Prompt caching, Batch API
API model idclaude-haiku-5-5gemini-2.5-flash-lite

Benchmarks side by side

Leader in bold.

BenchmarkClaude Haiku 5.5Gemini 2.5 Flash-Lite
Humanity's Last Exam 44.4% 3.7%
Long-context reasoning (AA-LCR) 82.7% 32%
Intelligence Index 43.4 No data
SciCode 55% No data
Terminal-Bench Hard No data 2.3%
GPQA Diamond No data 47.4%
IFBench (instruction following) No data 31.5%
τ²-Bench (agentic tool use) No data 19%
MMMU-Pro (visual reasoning) No data 54%

Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.

Frequently asked questions

Should I choose Claude Haiku 5.5 or Gemini 2.5 Flash-Lite?

Choose Claude Haiku 5.5 for reasoning over long documents, the latest release and the most recent knowledge. Choose Gemini 2.5 Flash-Lite for high-volume, cost-sensitive work and writing and code generation.

Which is cheaper, Claude Haiku 5.5 or Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash-Lite is 13% cheaper than Claude Haiku 5.5 at the headline price ($0.175 / 1M tokens vs $0.20 / 1M tokens).

Which has the larger context window, Claude Haiku 5.5 or Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash-Lite reads more per request: 1.05M tokens against 1M.

What is the difference between Claude Haiku 5.5 and Gemini 2.5 Flash-Lite?

Claude Haiku 5.5 is made by Anthropic and Gemini 2.5 Flash-Lite by Google. Gemini 2.5 Flash-Lite is 13% cheaper than Claude Haiku 5.5 at the headline price ($0.175 / 1M tokens vs $0.20 / 1M tokens). Gemini 2.5 Flash-Lite reads more per request: 1.05M tokens against 1M. Claude Haiku 5.5 is the newer model (October 2026, against July 2025).

How much do Claude Haiku 5.5 and Gemini 2.5 Flash-Lite cost per month?

At 20 million input and 5 million output tokens a month, Claude Haiku 5.5 costs $4.50 and Gemini 2.5 Flash-Lite costs $4.00, at standard rates.

Which is newer, Claude Haiku 5.5 or Gemini 2.5 Flash-Lite?

Claude Haiku 5.5 was released on October 2026 and Gemini 2.5 Flash-Lite on July 2025.