Model Comparison

Gemini 3.1 Pro vs Claude Haiku 4.5Which is better in 2026?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Claude Haiku 4.5 is 2.8x cheaper per token.

Verdict: Gemini 3.1 Pro vs Claude Haiku 4.5 — which is better?

Gemini 3.1 Pro (by Google) and Claude Haiku 4.5 (by Anthropic) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 3.1 Pro outperforms in 3 benchmarks (GPQA, MMMLU, SWE-Bench Verified), while Claude Haiku 4.5 is better at 0 benchmarks. Gemini 3.1 Pro significantly outperforms across most benchmarks.

On price, Claude Haiku 4.5 is roughly 2.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.1 Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 3.1 Pro if…

  • you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Feb 2026

Choose Claude Haiku 4.5 if…

  • cost matters — it's about 2.8x cheaper per token
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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Gemini 3.1 Pro outperforms in 3 benchmarks (GPQA, MMMLU, SWE-Bench Verified), while Claude Haiku 4.5 is better at 0 benchmarks.

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Sun Jun 07 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude Haiku 4.5 costs less

For input processing, Gemini 3.1 Pro ($2.50/1M tokens) is 2.5x more expensive than Claude Haiku 4.5 ($1.00/1M tokens).

For output processing, Gemini 3.1 Pro ($15.00/1M tokens) is 3.0x more expensive than Claude Haiku 4.5 ($5.00/1M tokens).

In conclusion, Gemini 3.1 Pro is more expensive than Claude Haiku 4.5.*

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

Lowest available price from all providers
Sun Jun 07 2026 • llm-stats.com
Google
Gemini 3.1 Pro
Input tokens$2.50
Output tokens$15.00
Best providerGoogle
Anthropic
Claude Haiku 4.5
Input tokens$1.00
Output tokens$5.00
Best providerAnthropic
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.1 Pro accepts 1,048,576 input tokens compared to Claude Haiku 4.5's 200,000 tokens. Gemini 3.1 Pro can generate longer responses up to 65,536 tokens, while Claude Haiku 4.5 is limited to 64,000 tokens.

Google
Gemini 3.1 Pro
Input1,048,576 tokens
Output65,536 tokens
Anthropic
Claude Haiku 4.5
Input200,000 tokens
Output64,000 tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.1 Pro and Claude Haiku 4.5 support multimodal inputs.

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

Gemini 3.1 Pro

Text
Images
Audio
Video

Claude Haiku 4.5

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.

Gemini 3.1 Pro

Proprietary

Closed source

Claude Haiku 4.5

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while Claude Haiku 4.5 was released on 2025-10-15.

Gemini 3.1 Pro is 4 months newer than Claude Haiku 4.5.

Gemini 3.1 Pro

Feb 19, 2026

3 months ago

4mo newer
Claude Haiku 4.5

Oct 15, 2025

7 months ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a knowledge cutoff of 2025-01-31, while Claude Haiku 4.5 has a cutoff of 2025-02-01.

Claude Haiku 4.5 has more recent training data (up to 2025-02-01), making it potentially better informed about events through that date compared to Gemini 3.1 Pro (2025-01-31).

Gemini 3.1 Pro

Jan 2025

Claude Haiku 4.5

Feb 2025

1 mo newer

Provider Availability

Gemini 3.1 Pro is available from Google. Claude Haiku 4.5 is available from Anthropic, Vertex AI.

Gemini 3.1 Pro

google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

Claude Haiku 4.5

anthropic logo
Anthropic
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
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (1,048,576 tokens)
Higher GPQA score (94.3% vs 73.0%)
Higher MMMLU score (92.6% vs 83.0%)
Higher SWE-Bench Verified score (80.6% vs 73.3%)
Anthropic
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3.1 Pro
Anthropic
Claude Haiku 4.5

FAQ

Common questions about Gemini 3.1 Pro vs Claude Haiku 4.5.

Which is better, Gemini 3.1 Pro or Claude Haiku 4.5?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Gemini 3.1 Pro is made by Google and Claude Haiku 4.5 is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.1 Pro compare to Claude Haiku 4.5 in benchmarks?

Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%. 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%.

Is Gemini 3.1 Pro cheaper than Claude Haiku 4.5?

Claude Haiku 4.5 is 2.5x cheaper for input tokens. Gemini 3.1 Pro costs $2.50/M input and $15.00/M output via google. Claude Haiku 4.5 costs $1.00/M input and $5.00/M output via anthropic.

What are the context window sizes for Gemini 3.1 Pro and Claude Haiku 4.5?

Gemini 3.1 Pro supports 1.0M tokens and Claude Haiku 4.5 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3.1 Pro and Claude Haiku 4.5?

Key differences include context window (1.0M vs 200K), input pricing ($2.50 vs $1.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Pro and Claude Haiku 4.5?

Gemini 3.1 Pro is developed by Google and Claude Haiku 4.5 is developed by Anthropic.

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