Anthropic vs OpenAI
A comprehensive comparison of Anthropic (4 models) and OpenAI (7 models) across pricing, benchmarks, context windows, and capabilities. Updated for 2026.
Provider Overview
Anthropic
Models
4
Price range
$4.80 – $30.00
Avg benchmarks
82.7%
Avg context
200K
OpenAI
Models
7
Price range
$0.75 – $18.00
Avg benchmarks
84.1%
Avg context
169K
Model Lineup Comparison
| Model | Provider | Category | Input $/1M | Output $/1M | Context | Avg Bench |
|---|---|---|---|---|---|---|
| GPT-5 | OpenAI | Flagship | $1.25 | $10.00 | 128K | 85.7% |
| GPT-5.2 Codex | OpenAI | Flagship | $1.75 | $14.00 | 200K | 86.8% |
| GPT-5.3 Codex | OpenAI | Flagship | $2.00 | $16.00 | 200K | 88.2% |
| Claude Opus 4.6 | Anthropic | Flagship | $5.00 | $25.00 | 200K | 86.7% |
| GPT-4o | OpenAI | Mid-Tier | $2.50 | $10.00 | 128K | 78.6% |
| Claude Sonnet 4.6 | Anthropic | Mid-Tier | $3.00 | $15.00 | 200K | 83.3% |
| Claude Sonnet 4.5 | Anthropic | Mid-Tier | $3.00 | $15.00 | 200K | 81.9% |
| o3 | OpenAI | Reasoning | $0.40 | $1.60 | 200K | 86.9% |
| o4-mini | OpenAI | Reasoning | $1.10 | $4.40 | 200K | 84.8% |
| GPT-4o Mini | OpenAI | Budget | $0.15 | $0.60 | 128K | 77.6% |
| Claude Haiku 4.5 | Anthropic | Budget | $0.80 | $4.00 | 200K | 78.8% |
Head-to-Head by Category
Flagship
$5.00/1M
$25.00/1M
200K
86.7%
$2.00/1M
$16.00/1M
200K
88.2%
Mid-Tier
$3.00/1M
$15.00/1M
200K
83.3%
$2.50/1M
$10.00/1M
128K
78.6%
Reasoning
$0.40/1M
$1.60/1M
200K
86.9%
Budget
$0.80/1M
$4.00/1M
200K
78.8%
$0.15/1M
$0.60/1M
128K
77.6%
Verdict
Best on price: OpenAI offers the cheapest option at $0.75/1M tokens combined, vs $4.80/1M from Anthropic.
Higher benchmarks: OpenAI averages 84.1% across models, vs 82.7% from Anthropic.
Larger context: Anthropic averages 200K context window across models.
More models: OpenAI offers 7 models vs 4 from Anthropic.
Choose OpenAI if cost is your priority. Choose OpenAI if you need the highest quality across your workloads.