Anthropic Claude Haiku Latest vs Gemini 3.1 Pro Preview, API pricing and model comparison

Compare Anthropic Claude Haiku Latest vs Gemini 3.1 Pro Preview side by side by input/output token price, context window, benchmark signals, capabilities, and example monthly API cost.

Quick comparison summary

This page compares Anthropic Claude Haiku Latest vs Gemini 3.1 Pro Preview in one matrix. Current records: Anthropic Claude Haiku Latest on OpenRouter: $1/$5 per 1M tokens, 200K context window; Gemini 3.1 Pro Preview on OpenRouter: $2/$12 per 1M tokens, 1049K context window. Prices are estimates—verify official provider pages before production use.

Claude Haiku Latest

~anthropic/claude-haiku-latest

OpenRouter

Input: $1.00 / 1M
Output: $5.00 / 1M
Context: 200k
Model page: Details

Gemini 3.1 Pro Preview

google/gemini-3.1-pro-preview

OpenRouter

Input: $2.00 / 1M
Output: $12.00 / 1M
Context: 1.0m
Model page: Details

Comparison matrixLLM Table

Models to compare2/4

Model 1

200K

Select model344 models

Model 2

1.0M

Select model344 models

Anthropic Claude Haiku Latest

OpenRouter

Cheapest (this scenario)

Input

$1.00 / 1M

Output

$5.00 / 1M

Context

200K

Monthly cost

$250.00

Benchmark

—

VisionToolsJSONReasoningLong context

Google: Gemini 3.1 Pro Preview

OpenRouter

Input

$2.00 / 1M

Output

$12.00 / 1M

Context

1.0MLargest context

Monthly cost

$560.00

Benchmark

1,487Top benchmarkLMArena Text Arena

VisionToolsJSONReasoningAudioLong context

Anthropic Claude Haiku Latest

OpenRouter

Google: Gemini 3.1 Pro Preview

OpenRouter

Input

$1.00 / 1MCheapest (this scenario)

$2.00 / 1M

Output

$5.00 / 1MCheapest (this scenario)

$12.00 / 1M

Context

200K

1.0MLargest context

Benchmark

—

1,487Top benchmark

LMArena Text Arena

Monthly cost

$250.00Cheapest (this scenario)

$560.00

Capabilities

VisionToolsJSONReasoningLong context

VisionToolsJSONReasoningAudioLong context

FAQ

Model comparison notes

How do Anthropic Claude Haiku Latest vs Gemini 3.1 Pro Preview API prices compare?

Compare input and output prices per 1M tokens side by side. The same underlying model can list different prices by route (Direct API vs OpenRouter); this table uses the selected route records.

Which model looks cheaper?

Scenario cost depends on your input/output mix. The example monthly cost in the table uses default token volumes—adjust with the cost calculator for your traffic.

Are benchmark scores included?

Independent or provider-reported benchmark signals appear when available. Benchmarks do not replace price analysis—evaluate both for your quality requirements.

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