GPT-5.6 Sol
Standard · up to 272K input · Global- Monthly API spend
- $300.00
- Cost / accepted answer
- $0.0333
- Quality assumption
- 90%
$5 input · $0.5 cache read · $30 output / 1M
Official source ↗OPENAI / ANTHROPIC
OpenAI vs Anthropic API pricing calculator.
Compare current GPT and Claude API rate cards on the same request volume, token counts, cache-read share, and quality-pass assumptions.
- OpenAI
- 3 models Published range $0.2–$45
- Anthropic
- 5 models Published range $1–$50
- Verified
- 2026-08-16
- Unit
- USD / 1M tokens
SHARED WORKLOAD
Change the models, not the accounting.
Both sides receive the same requests and token counts. Set separate quality pass rates so a low token price cannot hide rejected answers.
SAME WORKLOAD · TWO API RATE CARDSOpenAI Anthropic
Claude Fable 5
Standard · Global routing- Monthly API spend
- $550.00
- Cost / accepted answer
- $0.0611
- Quality assumption
- 90%
$10 input · $1 cache read · $50 output / 1M
Official source ↗QUALITY-ADJUSTED RESULTOpenAI is lower in this scenario.
At the entered pass rates, its estimated cost per accepted answer is $0.0333. This is scenario math, not evidence that the selected models have equal capabilities.
API rates are USD per one million tokens. The estimate excludes cache writes or storage, tools, retries, regional uplifts, taxes, latency failures, and consumer-plan quotas.
OpenAI context tiers and Anthropic cache-write lifetimes are different billing mechanisms. Select the exact card used by each workload rather than comparing provider-wide minimums.
Inspect the exact rate card
6 currently effective cards are available in the calculator. Context bands and regions remain separate.
Open OpenAI pricingKeep billing scope intact
5 currently effective cards are available in the calculator. A missing cache rate is never treated as free.
Open Anthropic pricingBefore you call a winner.
Which is cheaper, OpenAI or Anthropic?
There is no provider-wide answer. Cost depends on the exact model tier, input and output size, cache behavior, region, execution mode, and the share of answers that pass the workload’s quality bar.
Does this comparison prove the models have equal quality?
No. The calculator keeps separate quality-pass assumptions so you can enter measured results. Equal token counts or prices do not establish equivalent capabilities.
Are consumer subscriptions included?
No. ChatGPT, Claude, Gemini, Grok, Kimi, and other consumer-plan quotas are separate from API token billing.