GPT 5.3 API pricing
Published on-demand rates for OpenAI's gpt-5.3-chat-latest, captured 2026-08-10 from public pricing data and committed to our archive. Context window 128k tokens; first observed in our archive 2026-03-09.
| Meter | USD per 1M tokens |
|---|---|
| Input | $1.75 |
| Output | $14.00 |
| Cached input | $0.175 |
Standard on-demand rates. Excludes batch endpoints and negotiated pricing; confirm on OpenAI's pricing page before committing.
What it costs on a real workload
The four frozen profiles the LLMPrice indices price, per 1M tokens processed, at the rates above. Where no cache-read rate is published, the whole input bills at the standard rate.
| Profile | In / out mix | Cached share | Cost |
|---|---|---|---|
| Retrieval | 800k / 200k | 70% | $3.32 |
| Chat | 500k / 500k | 30% | $7.64 |
| Content | 200k / 800k | 20% | $11.49 |
| Agent | 900k / 100k | 85% | $1.77 |
Profile definitions are frozen and published on the methodology page. Compare every model on these profiles →
Observed rate history
No repricing observed since this model entered our archive on 2026-03-09. When a rate moves, the change appears here and on the sitewide ticker.
Priced near this one
The models closest to GPT 5.3 on a retrieval workload, cheaper and more expensive alike. We publish no quality score, so this is what they cost and nothing more.
| Model | Provider | Input | Output | vs GPT 5.3 |
|---|---|---|---|---|
| Sonar Reasoning Pro | Perplexity | $2.00 | $8.00 | 4% less |
| GPT 5.6 Terra | OpenAI | $2.00 | $12.00 | 10% less |
| Magistral Medium 1.2 | Mistral | $2.00 | $5.00 | 22% less |
| Claude Sonnet 5 | Anthropic | $2.00 | $10.00 | 22% less |
Compared on the retrieval profile: 800k input, 200k output, 70% of input cached where the model offers a cache rate.
No affiliate or referral arrangements: the console link carries no parameters and nothing on this page is paid placement. GPT 5.3 is a trademark of its owner; LLMPrice.io is independent and unaffiliated.