Compare AI Models Side by Side

Pick 2 to 4 models to compare benchmark scores, pricing, and specs in 2026.

Claude Haiku 4.5
Claude Sonnet 4.6
o3
Gemini 2.5 Pro
Anthropic
Claude Haiku 4.5

Anthropic · Claude

Anthropic
Claude Sonnet 4.6

Anthropic · Claude

OpenAI
o3

OpenAI · o-series

Google
Gemini 2.5 Pro

Google · Gemini

Specifications

Spec
Claude Haiku 4.5
Claude Sonnet 4.6
o3
Gemini 2.5 Pro
ProviderAnthropicAnthropicOpenAIGoogle
FamilyClaudeClaudeo-seriesGemini
Release date2025-10-012026-02-172025-04-242025-06-17
Open sourceNoNoNoNo
Context window200K tokens1.0M tokens200K tokens1.0M tokens
Max output--128K tokens----
Input price / MTok$1.00$3.00$2.00$1.25*
Output price / MTok$5.00$15.00$8.00$10.00*
Speed98 tok/s47 tok/s167 tok/s151 tok/s
Best forbudget, agentscoding, agents, visionreasoning, codinglong-context, reasoning, vision

* Gemini 2.5 Pro: $2.50/$15 per MTok for prompts over 200K tokens

Benchmark scores (% of max)

Scores normalized to percentage of each benchmark's maximum reported value. Only officially reported scores are included.

Cost per million tokens (USD)

Context window (thousands of tokens)

Output speed (tokens per second)

Notes

Claude Haiku 4.5: Fastest Claude model; best for high-volume and real-time tasks.
o3: Full reasoning model; chain-of-thought reasoning tokens billed as output.
Gemini 2.5 Pro: Now considered legacy as Gemini 3.x is GA.
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Claude Haiku 4.5 vs Claude Sonnet 4.6 vs o3 vs Gemini 2.5 Pro | AI Model Comparison