GPT-5.5 Instant (June 2026)
Analysis Summary
GPT-5.5 Instant is OpenAI's lower-compute variant of the GPT-5.5 family, released June 2026. Its intelligence index of 28.9 places it in the 'good' tier, well below the flagship GPT-5.5 at 54.8, but its coding index of 39.4 and GPQA of 0.823 show meaningful capability for structured tasks. Long-context reliability at 0.64 is reasonable for mid-tier document work.
For businesses, this model suits moderate coding assistance, content drafting, and structured output tasks where the full GPT-5.5 would be cost-prohibitive. It lacks listed tool-use or vision capabilities, which limits its fit for agentic or multimodal pipelines. The intelligence gap versus the flagship GPT-5.5 variants is significant enough that it should not be used for complex reasoning chains.
At $5 input and $30 output per million tokens, pricing is high relative to its benchmark performance. Competing models at similar or lower price points offer stronger intelligence scores. This model is best suited to teams already embedded in the OpenAI ecosystem who need a faster, cheaper GPT-5.5 variant for moderate-complexity tasks.
Assessed June 30, 2026
Editorial notes
GPT-5.5 Instant from OpenAI offers strong coding capability and good reasoning at a mid-tier intelligence index of 28.9, but its $5 input pricing is steep relative to its benchmark position in the broader landscape.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How GPT-5.5 Instant (June 2026) compares
GPT-5.5 Instant (June 2026) ranks #87 of 385 AI models we track for overall intelligence, #50 of 139 for coding. At $5.00 per million input tokens it is cheaper than 7% of comparable models.
Performance Indices
Source: Artificial Analysis
This model was released recently. Independent benchmark evaluations are typically completed within days of release, so these figures are preliminary and are likely to be updated as testing is finalised.
Benchmark Scores
Intelligence
Content
Benchmark data from Artificial Analysis and Hugging Face
How does GPT-5.5 Instant (June 2026) stack up?
Compare side-by-side with other professional models.
Model Information
| Provider | OpenAI |
| Release Date | June 25, 2026 |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $5.00 | $0.005000 |
| Output | $30.00 | $0.030000 |
Leaderboard Categories
Frequently asked questions about GPT-5.5 Instant (June 2026)
How much does GPT-5.5 Instant (June 2026) cost?
GPT-5.5 Instant (June 2026) costs $5.00 per million input tokens and $30.00 per million output tokens.
Is GPT-5.5 Instant (June 2026) good for coding?
On our coding benchmark index, GPT-5.5 Instant (June 2026) ranks #50 of 139 models, placing it in the broader range of the field for code generation and debugging.
Who created GPT-5.5 Instant (June 2026)?
GPT-5.5 Instant (June 2026) is developed by OpenAI and was released on June 25, 2026.
