Plans and real price
Cheapest measured$0.020per million tokens, measuredChatGPT Pro 20x · medium confidence · 2026-06-10~2026-09-06
API list price$5.00 / $30input / output per million tokens
| Plan | Monthly price | Usable tokens / month | Real price / MTok | Confidence | Data date |
|---|
| ChatGPT Pro 20x | $200 | 10B | $0.020 | medium | 2026-06-10~2026-09-06 |
| ChatGPT Plus | $20 | 476.6M | $0.042 | medium | Jul 30, 2026 |
| ChatGPT Pro 5x | $100 | 2.4B | $0.042 | medium | Jul 30, 2026 |
Data: real-api-pricing · Sources and licenses
API price
| Input / 1M | $5.00 |
|---|
| Cached / 1M | $0.500 |
|---|
| Output / 1M | $30 |
|---|
At 1,000 requests a day (2,000 input and 500 output tokens each), about $750 a month.
API cost calculator · OpenAI API pricing
Data: real-api-pricing · Sources and licenses
Benchmarks
| Configuration | Harness | Score | Cost per task |
|---|
| GPT-5.5 (xhigh) | — | 38.4 | — |
| GPT-5.5 (high) | — | 37.0 | — |
| GPT-5.5 (medium) | — | 33.8 | — |
| GPT-5.5 (low) [AA estimate] | — | 30.7 | — |
| GPT-5.5 (non-reasoning) [AA estimate] | — | 23.2 | — |
| Configuration | Harness | Score | Cost per task |
|---|
| Artificial Analysis - GPT-5.5 (xhigh) | Artificial Analysis | 14.6 | — |
| Artificial Analysis - GPT-5.5 (high) | Artificial Analysis | 9.1 | — |
| Artificial Analysis - GPT-5.5 (medium) | Artificial Analysis | 5.1 | — |
| Configuration | Harness | Score | Cost per task |
|---|
| gpt-5.5-xhigh (codex-harness) | Codex | 1512.0 (1506.1–1517.9) | — |
| gpt-5.5-high (codex-harness) | Codex | 1487.0 (1481.1–1492.9) | — |
| gpt-5.5 (codex-harness) | Codex | 1455.0 (1449.1–1460.9) | — |
| Configuration | Harness | Score | Cost per task |
|---|
| GPT 5.5 (xHigh) | — | 4.1 (3.1–5.2) | — |
| GPT 5.5 | — | 1.1 (0.2–2.1) | — |
| Configuration | Harness | Score | Cost per task |
|---|
| mini-swe-agent - gpt-5-5 (xhigh) | mini-swe-agent | 67.0 (60.6–73.5) | $7.23 |
| mini-swe-agent - gpt-5-5 (high) | mini-swe-agent | 64.4 (61.3–67.5) | $5.10 |
| mini-swe-agent - gpt-5-5 (medium) | mini-swe-agent | 54.0 (51.4–56.5) | $2.75 |
| mini-swe-agent - gpt-5-5 (low) | mini-swe-agent | 27.0 (24.7–29.3) | $1.20 |
Data: real-api-pricing · Sources and licenses
Codex Radar runs
| Effort | Harness | Radar IQ | Avg cost (USD) | Avg minutes |
|---|
| high | codex | 89.7 | $3.12 | 16.2 |
| xhigh | codex | 96.9 | $4.76 | 22.5 |
Data: codexradar · Sources and licenses
