GPT-5.5 Instant (June 2026)
GPT-5.5 Instant (June 2026)Alternatives?
CheaperGPT-6.1 Solxhigh+12%-31%$0.39Remove unsupported parameters+5
BetterClaude Haiku 5.5max+11%-63%$0.21Remove sampling parameters+5
OpenQwen3.8 2.4T A95Bthinking-4%+279%$2.16Context: 400K → 262K+6CheaperGPT-6 Solxhighsame-8%$0.52
CheaperDeepSeek V4.1 Flash 1017maxOpen-16%-54%$0.26Pass back reasoning_content · Chat Completions+4GPT-6.1 Solxhigh+12%-31%$0.39Remove unsupported parameters+5Claude Haiku 5.5max+11%-63%$0.21Remove sampling parameters+5GPT-6 Solxhighsame-8%$0.52DeepSeek V4.1 Flash 1017maxOpen-16%-54%$0.26Pass back reasoning_content · Chat Completions+4GPT-6 Lunamax-18%-88%$0.068Function calling only with none · Chat Completions+3Claude Haiku 5.5max+11%-63%$0.21Remove sampling parameters+5GPT-6.1 Solxhigh+12%-31%$0.39Remove unsupported parameters+5GPT-6 Astralow+7%+44%$0.82Monitoring can return HTTP 403+2GPT-6 Solmax+7%+84%$1.04Claude Sonnet 5.5max+32%+860%$5.46No forced tool use+5Qwen3.8 2.4T A95BthinkingOpen-4%+279%$2.16Context: 400K → 262K+6DeepSeek V4.1 Flash 1017maxOpen-16%-54%$0.26Pass back reasoning_content · Chat Completions+4Qwen3.8 27BxhighOpen-28%+102%$1.15Context: 400K → 262K+5
Kimi K3maxOpen-32%+252%$2.00Sampling parameters are fixed+3Qwen3.8 FlashthinkingOpen-35%-35%$0.37Context: 400K → 262K+6GPT-6 Astramedium+21%+171%$1.54Monitoring can return HTTP 403+2GPT-6.1 Solmediumsame-62%$0.21Remove unsupported parameters+5GPT-6 Solmedium-9%-57%$0.25GPT-5.6 Solmedium-18%-11%$0.50GPT-5.6 Terramedium-28%-68%$0.18Prompts with >272K input tokensGPT-5.5medium-30%+35%$0.77Prompts with >272K input tokensGPT-5.4 Minixhigh-37%-35%$0.37GPT-6 Lunamedium-42%-97%$0.017Function calling only with none · Chat Completions+3All OpenAI models →Benchmarks
in Chat & KnowledgeFAQ
How much does GPT-5.5 Instant (June 2026) cost?›
There is no per-unit API price: API price not public.
Is GPT-5.5 Instant (June 2026) free to use?›
There is no free API.
How good is GPT-5.5 Instant (June 2026), and what is it best at?›
#127 of 336 in Chat & Knowledge, #36 of 134 in Coding, #48 of 135 in Agents & Tool Use, #26 of 135 in Vision & Documents. Strongest at: Knowledge.
Is GPT-5.5 Instant (June 2026) better than GPT-6 Sol?›
On MLCR-AA, GPT-5.5 Instant (June 2026) scores 31.7 vs 33.9 — lower. It is 46% cheaper per task.
What is the context window of GPT-5.5 Instant (June 2026)?›
400K tokens.
When was GPT-5.5 Instant (June 2026) released? Is there a newer version?›
Released 2026-06-25. It is the current version in its line.
Is GPT-5.5 Instant (June 2026) open source?›
No, GPT-5.5 Instant (June 2026) is a closed model available through an API. The closest open-weights option here is Qwen3.8 2.4T A95B.
Can GPT-5.5 Instant (June 2026) read images?›
It accepts text and images as input.
What is GPT-5.5 Instant (June 2026)?›
GPT-5.5 Instant (June 2026) is a closed language model from OpenAI, released Jun 2026, the successor to GPT-5.5 Instant (May 2026).
What are the best alternatives to GPT-5.5 Instant (June 2026)?›
GPT-6.1 Sol (cheaper), Claude Haiku 5.5 (better), Qwen3.8 2.4T A95B (open weights).