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Claude Haiku 4.5 vs Gemini 3.8 Flash

Gemini 3.8 Flash leads the LLM Stats Score 50.5 to 25.7. Gemini 3.8 Flash is 1.3x cheaper per token.

Anthropic · Google · Updated for 2026

Which is better?

Gemini 3.8 Flash leads the overall LLM Stats Score 50.5 to 25.7, ranking #17 overall.

On price, Gemini 3.8 Flash is roughly 1.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.8 Flash also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Haiku 4.5

  • you want predictable pricing at $1.00/M input and $5.00/M output

Choose Gemini 3.8 Flash

  • overall performance matters — it scores 50.5 and ranks #17 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • cost matters — it's about 1.3x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

Claude Haiku 4.5
Anthropic
Gemini 3.8 Flash
Google
Core performance indexes
LLM Stats Score
25.7
#153
50.5
#17
Reasoning
25.3
#152
46.9
#25
Coding
19.6
#102
38.6
#15
Agents
13.5
#93
35.6
#18
Cost, coverage & limits
Benchmark wins
—
—
Input price
$1.00 / M
$0.75 / M
Output price
$5.00 / M
$3.75 / M
Context window
200,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Claude Haiku 4.5
Gemini 3.8 Flash
Vision
8.6#135
34.1#13
Tool use
15.5#90
27.0#25
Multimodal
10.0#115
35.3#11
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

12 reported for Claude Haiku 4.5 · 13 for Gemini 3.8 Flash

No common benchmarks found

Claude Haiku 4.5 and Gemini 3.8 Flashdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Gemini 3.8 Flash costs less

For input processing, Claude Haiku 4.5 ($1.00/1M tokens) is 1.3x more expensive than Gemini 3.8 Flash ($0.75/1M tokens).

For output processing, Claude Haiku 4.5 ($5.00/1M tokens) is 1.3x more expensive than Gemini 3.8 Flash ($3.75/1M tokens).

In conclusion, Claude Haiku 4.5 is more expensive than Gemini 3.8 Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sun Sep 20 2026 • llm-stats.com
Anthropic
Claude Haiku 4.5
Input tokens$1.00
Output tokens$5.00
Best providerAnthropic
Google
Gemini 3.8 Flash
Input tokens$0.75
Output tokens$3.75
Best providerGoogle
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.8 Flash accepts 1,048,576 input tokens compared to Claude Haiku 4.5's 200,000 tokens. Gemini 3.8 Flash can generate longer responses up to 65,536 tokens, while Claude Haiku 4.5 is limited to 64,000 tokens.

Anthropic
Claude Haiku 4.5
Input200,000 tokens
Output64,000 tokens
Google
Gemini 3.8 Flash
Input1,048,576 tokens
Output65,536 tokens
Sun Sep 20 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 4.5 and Gemini 3.8 Flash support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Haiku 4.5

Text
Images
Audio
Video

Gemini 3.8 Flash

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Haiku 4.5

Proprietary

Closed source

Gemini 3.8 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 4.5 was released on 2025-10-15, while Gemini 3.8 Flash was released on 2026-09-02.

Gemini 3.8 Flash is 11 months newer than Claude Haiku 4.5.

Claude Haiku 4.5

Oct 15, 2025

11 months ago

Gemini 3.8 Flash

Sep 2, 2026

2 weeks ago

10mo newer

Knowledge Cutoff

When training data ends

Claude Haiku 4.5 has a knowledge cutoff of 2025-02-01, while Gemini 3.8 Flash has a cutoff of 2026-03-31.

Gemini 3.8 Flash has more recent training data (up to 2026-03-31), making it potentially better informed about events through that date compared to Claude Haiku 4.5 (2025-02-01).

Claude Haiku 4.5

Feb 2025

Gemini 3.8 Flash

Mar 2026

1.1 yr newer

Provider Availability

Claude Haiku 4.5 is available from Anthropic, DeepInfra, Vertex AI. Gemini 3.8 Flash is available from Google.

Claude Haiku 4.5

anthropic logo
Anthropic
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M
deepinfra logo
Deepinfra
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M
vertex logo
Unknown Organization
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M

Gemini 3.8 Flash

google logo
Google
Input Price:Input: $0.75/1MOutput Price:Output: $3.75/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Haiku 4.5 and Gemini 3.8 Flash side-by-side, then vote on the output you prefer.

Claude Haiku 4.5
✓ Preferred
Gemini 3.8 Flash
Open in Playground

FAQ

Common questions about Claude Haiku 4.5 vs Gemini 3.8 Flash.

Which is better, Claude Haiku 4.5 or Gemini 3.8 Flash?

Gemini 3.8 Flash leads the LLM Stats Score 50.5 to 25.7. Claude Haiku 4.5 is made by Anthropic and Gemini 3.8 Flash is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Haiku 4.5 compare to Gemini 3.8 Flash in benchmarks?

Claude Haiku 4.5 scores Tau2 Retail: 83.2%, MMMLU: 83.0%, Tau2 Telecom: 83.0%, AIME 2025: 80.7%, SWE-Bench Verified: 73.3%. Gemini 3.8 Flash scores Terminal-Bench 2.1: 89.4%, LVBench: 87.1%, CharXiv-R: 86.2%, LABBench2: 86.2%, DeepSWE 1.1: 73.7%.

Is Claude Haiku 4.5 cheaper than Gemini 3.8 Flash?

Gemini 3.8 Flash is 1.3x cheaper for input tokens. Claude Haiku 4.5 costs $1.00/M input and $5.00/M output via anthropic. Gemini 3.8 Flash costs $0.75/M input and $3.75/M output via google.

What are the context window sizes for Claude Haiku 4.5 and Gemini 3.8 Flash?

Claude Haiku 4.5 supports 200K tokens and Gemini 3.8 Flash supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Haiku 4.5 and Gemini 3.8 Flash?

Key differences include LLM Stats Score (25.7 vs 50.5), context window (200K vs 1.0M), input pricing ($1.00 vs $0.75/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 4.5 and Gemini 3.8 Flash?

Claude Haiku 4.5 is developed by Anthropic and Gemini 3.8 Flash is developed by Google.

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