OpenAI vs Anthropic Pricing
Per-million-token pricing for OpenAI and Anthropic, with side-by-side flagship models, cheapest tiers, and context windows. Pricing data syncs weekly from a continuously-updated model catalog — last updated June 22, 2026.
As of June 22, 2026, OpenAI offers the lowest output-token price at $0.14/1M (gpt-oss-20b — $0.14/1M output).
Who wins on what
Cheapest input tokens
$0.03/1MOpenAI
gpt-oss-20b — $0.03/1M input
Cheapest output tokens
$0.14/1MOpenAI
gpt-oss-20b — $0.14/1M output
Longest context window
2.0MOpenAI
gpt-5.4 (>272K context length) — 2.0M input tokens
Lowest average output cost
$25.49/1MAnthropic
Provider-wide average across 41 models
Largest model catalog
138 modelsOpenAI
More options to match cost vs capability
Cheapest cached input
$0.03/1MAnthropic
Claude Haiku 3 — $0.03/1M cached read
Most reasoning models
9 modelsOpenAI
Models with dedicated reasoning / thinking support
Most vision models
10 modelsOpenAI
Models that accept image input
Side-by-side
OpenAI
Cheapest input
$0.030
gpt-oss-20b
Cheapest output
$0.140
gpt-oss-20b
Longest context
2.0M
gpt-5.4 (>272K context length)
Avg output / 1M
$28.00
Across catalog
Cheapest cached input
$0.125
GPT-5.1 Codex Max
| Model | In/1M | Out/1M | Ctx |
|---|---|---|---|
| GPT-5.5 Pro VisionReasoningTools | $30.00 | $180.00 | 1.1M |
| GPT-5.5 VisionReasoningToolsCache | $5.00 | $30.00 | 1.1M |
| gpt-5.4-mini | $0.750 | $4.50 | 272K |
| gpt-5.4-nano | $0.200 | $1.25 | 272K |
| GPT-5.4 Pro VisionReasoningTools | $30.00 | $180.00 | 1.1M |
| gpt-oss-20b | $0.030 | $0.140 | 131K |
Anthropic
Cheapest input
$0.250
Claude 3 Haiku
Cheapest output
$1.25
Claude 3 Haiku
Longest context
1.0M
Claude 4 Sonnet (2025-05-14)
Avg output / 1M
$25.49
Across catalog
Cheapest cached input
$0.030
Claude Haiku 3
| Model | In/1M | Out/1M | Ctx |
|---|---|---|---|
| Claude Fable 5 VisionReasoningToolsCache | $10.00 | $50.00 | 1.0M |
| Claude Opus 4.8 VisionReasoningToolsCache | $5.00 | $25.00 | 1.0M |
| Claude Opus 4.7 | $5.00 | $25.00 | 200K |
| Claude Opus 4.6 | $5.00 | $25.00 | 200K |
| Claude Opus 4.5 | $5.00 | $25.00 | 200K |
| Claude 3 Haiku | $0.250 | $1.25 | 200K |
All prices in USD per 1 million tokens. Showing top 6 models per provider, sorted by output cost.
Related comparisons
Run the numbers for your workload
Calcaas multiplies per-token costs by your real usage patterns — inputs, outputs, retries, and conversation history — across both providers in one model.