Claude 3 Haiku (2024-03-07) vs Gemini 3 Pro Preview

Claude 3 Haiku (2024-03-07) vs Gemini 3 Pro Preview: Claude 3 Haiku (2024-03-07) is cheaper by 90% on average. Claude 3 Haiku (2024-03-07) from Anthropic (200,000-token context, tool calls) vs. Gemini 3 Pro Preview from Google Vertex AI (1,048,576-token context, reasoning, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.

Side-by-side cost

Live workload comparison

Same workload run through both models. The cheaper one is highlighted.

3,000
01,048,576
400
065,535
5,000
01,000,000
Anthropic
$190/mo
Input $0.250/M · Output $1.25/M
Google Vertex AI
$1,644/mo
Input $2.00/M · Output $12.00/M
At this workload, Claude 3 Haiku (2024-03-07) is 88% cheaper than Gemini 3 Pro Preview — a savings of $1,453/month ($17,441/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: claude-3-haiku-20240307
  provider: anthropic
fallback:
  model: gemini-3-pro-preview
  provider: vertex-ai
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
Claude 3 Haiku (2024-03-07) Gemini 3 Pro Preview
Input price $0.250/M $2.00/M
Output price $1.25/M $12.00/M
Context window 200,000 1,048,576
Max output 4,096 65,535
Function calling
Vision
Audio input
Reasoning
Prompt caching
Structured output
Pricing verified May 12, 2026 May 12, 2026
Cheaper option
~90% cheaper than Gemini 3 Pro Preview
Larger context
1,048,576 tokens
More capabilities
6 of 6 capability flags advertised

Benchmark comparison

Side-by-side public benchmark scores. Greener bar = winner.

Chatbot Arena ELOgeneral
Claude 3 Haiku (2024-03-07)
Gemini 3 Pro Preview
1,486
MMLUgeneral
Claude 3 Haiku (2024-03-07)
75.2%
Gemini 3 Pro Preview