GPT-5.5 Instant (May 2026) API Pricing
OpenAI · released 2026-05-05
Pricing
0.500¢ / 1K
3.00¢ / 1K
1.12¢ / 1K
What it actually costs
| Workload | Tokens | Cost |
|---|---|---|
| Short chat reply | 500 in / 300 out | $0.0115 |
| RAG query | 4,000 in / 500 out | $0.0350 |
| Long document summary | 50,000 in / 1,000 out | $0.2800 |
| Code review of a 2k-line file | 30,000 in / 2,000 out | $0.2100 |
| 1,000 chat replies/day for 30 days | 30,000 × (500 in / 300 out) | $345.00 |
Cost = (input tokens ÷ 1,000,000 × $5.00) + (output tokens ÷ 1,000,000 × $30.00).
Benchmarks
#105 of 533
Similar intelligence, lower price
| Model | Intelligence | Blended $/1M |
|---|---|---|
| Hy3-preview (Reasoning) | 22.7 | $0.10 |
| Ling 3.0 Flash | 24.9 | $0.111 |
| Ling-3.0-flash-VL | 24.6 | $0.111 |
| MiMo-V2-Flash (Reasoning) | 20.8 | $0.15 |
| MiMo-V2.5 | 25.2 | $0.175 |
Leaderboard neighbours
| Model | Intelligence | Blended $/1M |
|---|---|---|
| MiniMax-M2.5 | 22.8 | $0.525 |
| MiniMax-M2.7 | 22.8 | $0.525 |
| A.X-K2 | 22.7 | — |
| GPT-5.5 Instant (May 2026) | 22.7 | $11.25 |
| Hy3-preview (Reasoning) | 22.7 | $0.10 |
| Ling-3.0-flash-Fin | 22.6 | — |
| Grok 4 | 22.5 | $6.00 |
More from OpenAI
| Model | Intelligence | Blended $/1M |
|---|---|---|
| GPT-6 Astra (max) | 52.7 | $20.00 |
| GPT-5.6 Sol (max) | 47.0 | $8.00 |
| GPT-5.6 Terra (max) | 42.1 | $4.50 |
| GPT-5.4 (xhigh) | 39.0 | $5.625 |
| GPT-5.5 (xhigh) | 38.4 | $11.25 |
| GPT-5.6 Luna (max) | 37.3 | $0.45 |
| GPT-5.3 Codex (xhigh) | 32.5 | $4.813 |
| GPT-5.2 (xhigh) | 30.4 | $4.813 |
Count tokens & estimate cost for GPT-5.5 Instant (May 2026) See GPT-5.5 Instant (May 2026) on the leaderboard
Source: Artificial Analysis · last synced 2026-09-22
FAQ
Who develops GPT-5.5 Instant (May 2026)?
GPT-5.5 Instant (May 2026) is developed by OpenAI, released 2026-05-05.
How much does GPT-5.5 Instant (May 2026) cost per million tokens?
GPT-5.5 Instant (May 2026) costs $5.00 per 1M input tokens and $30.00 per 1M output tokens ($11.25 blended), per Artificial Analysis's official pricing data.
How does GPT-5.5 Instant (May 2026) rank on benchmarks?
GPT-5.5 Instant (May 2026) scores 22.7 on the Artificial Analysis Intelligence Index, ranking #105 of 533 models we track.
Is there a cheaper model with similar intelligence to GPT-5.5 Instant (May 2026)?
Yes — Hy3-preview (Reasoning) scores similar intelligence (22.7) at $0.10/1M blended, versus $11.25/1M for GPT-5.5 Instant (May 2026).
Where does this data come from?
Pricing and benchmark data for GPT-5.5 Instant (May 2026) comes from Artificial Analysis (artificialanalysis.ai), synced daily. Last synced 2026-09-22.