GPT Chat Latest API Pricing
OpenAI · context window 400K · prices updated 2026-09-15
Where GPT Chat Latest sits on price
At $30.00 per million output tokens, GPT Chat Latest is a frontier tier model — 14.4× the median output price of $2.08, which puts it in the most expensive 10% of everything we track. It sits 77th cheapest of the 92 OpenAI models we track. Output costs 6.0× more than input here, so anything that makes the model write less — tighter instructions, structured output, lower max_tokens — moves the bill more than trimming the prompt.
Cached input is 90% cheaper. On an input-heavy workload you need roughly a 28% cache-hit rate to take 25% off the input line — reachable for chatbots and agents that resend the same system prompt and history.
What real workloads cost on GPT Chat Latest
These three workloads are the ones teams actually run on a frontier-priced model — a $30.00/1M model is not bought for the same job as one ten times the price.
| Workload | Per request | Per month |
|---|---|---|
| Small app — 1K requests/day (500 in / 150 out) The baseline most side projects actually run at. | $0.007 | $210 |
| Coding agent — 300 sessions/day (60K in / 12K out) Multi-step loops re-read the same files; caching matters more than raw price. | $0.66 | $5940 |
| Support chatbot — 500 conversations/day (5K in / 1.4K out) Conversation history re-sent each turn — the classic prompt-caching win. | $0.067 | $1005 |
Model your exact traffic in the API cost calculator — it preloads GPT Chat Latest with caching and batch options.
GPT Chat Latest price history
GPT Chat Latest's price has not moved since we began tracking it on Aug 2, 2026 — 44 days of stability in a market where 78 of the 334 models we track have repriced over the same period, including 9 of OpenAI's own 92 models.
Change-points from our daily price snapshots (tracking since Aug 2, 2026; intraday moves between snapshots are not captured).
GPT Chat Latest vs Claude Fable 5.1 (batch)
The closest-priced alternative from another vendor is Claude Fable 5.1 (batch) (Anthropic) — 17% cheaper on output, with identical input pricing. When two models land this close on price, the decision is quality on your own workload, not the price sheet: run 50 real requests through both and compare.
See Claude Fable 5.1 (batch) pricing →Cheaper alternatives
More OpenAI models
Frequently asked questions
› How much does the GPT Chat Latest API cost?
GPT Chat Latest costs $5.00 per million input tokens and $30.00 per million output tokens, with cached input at $0.5 per million (90% cheaper). That works out to roughly 33,333 output tokens per dollar.
› What does the small app workload cost on GPT Chat Latest?
Small app — 1K requests/day (500 in / 150 out) costs about $0.007 per request and $210 per month on GPT Chat Latest. The baseline most side projects actually run at.
› What does it cost to fill GPT Chat Latest's 400K context window?
Sending 400K of input in a single request costs $2.00 at $5.00 per million tokens — before any output. With prompt caching that same fill drops to about $0.2 on repeat requests. This is why large context windows are cheap to advertise and expensive to actually use.
› Is GPT Chat Latest worth the price?
GPT Chat Latest is priced in the top bracket, at $30.00 per million output tokens. It only pays off where an error is expensive — production code, legal and medical drafting, agents that take real actions. For anything routine, Claude Fable 5.1 (batch) at $25.00 does the same job for a fraction of the bill.