GPT-5.5
GPT-5.5Alternatives?
CheaperGrok 4.3medium+17%-86%$1.25 / $2.50Context: 1.05M → 1MBetterGPT-5 Minihigh+6%-93%$0.053Context: 1.05M → 400K
OpenMiniMax M3thinking+17%-34%$0.51Context: 1.05M → 524K+2
CheaperNemotron 3 UltrathinkingOpen+15%-52%$0.37Context: 1.05M → 1M+1
CheaperMiMo v2.5 ProthinkingOpen+13%-80%$0.15Context: 1.05M → 1M+1Grok 4.3medium+17%-86%$1.25 / $2.50Context: 1.05M → 1MMiniMax M3thinkingOpen+17%-34%$0.51Context: 1.05M → 524K+2Nemotron 3 UltrathinkingOpen+15%-52%$0.37Context: 1.05M → 1M+1MiMo v2.5 ProthinkingOpen+13%-80%$0.15Context: 1.05M → 1M+1
Qwen3.5 397B A17BthinkingOpen+11%-38%$0.47Context: 1.05M → 262KGPT-5 Minihigh+6%-93%$0.053Context: 1.05M → 400K
Gemini 3.1 Flash Litehigh+9%-92%$0.06Context: 1.05M → 1MMiniMax M2.7thinkingOpen+7%-86%$0.11Context: 1.05M → 205K+1MiMo v2.5 ProthinkingOpen+13%-80%$0.15Context: 1.05M → 1M+1GPT-5.4 Nanoxhigh+7%-76%$0.18Context: 1.05M → 400KMiniMax M3thinkingOpen+17%-34%$0.51Context: 1.05M → 524K+2Nemotron 3 UltrathinkingOpen+15%-52%$0.37Context: 1.05M → 1M+1Nemotron Cascade 2 30B A3BOpen+13%——Context: 1.05M → 1M+1MiMo v2.5 ProthinkingOpen+13%-80%$0.15Context: 1.05M → 1M+1Qwen3.5 397B A17BthinkingOpen+11%-38%$0.47Context: 1.05M → 262KGPT-5.3 Codexxhigh+6%—$1.75 / $14Context: 1.05M → 400K+1GPT-5.5 Instant (May 2026)same——Context: 1.05M → 400Ko3thinkingsame—$2 / $8Context: 1.05M → 200KGPT-5 Minimediumsame—$0.25 / $2Context: 1.05M → 400KGPT-5mediumsame—$1.25 / $10Context: 1.05M → 400Ko1thinkingsame—$15 / $60Context: 1.05M → 200KGPT-5.6 Solmedium-2%-34%$0.50GPT-5 Nanomedium-7%—$0.05 / $0.40Context: 1.05M → 400KAll OpenAI models →History
17 versionsBenchmarks
in Writing & LanguageWatch out 1
Prompts with >272K input tokens›
Above 272K input tokens, input costs 2× and output 1.5× for the full session in Standard, Batch and Flex. Source ↗
FAQ
How much does GPT-5.5 cost?›
$5 per 1M input tokens and $30 per 1M output tokens; cached input $0.50 per 1M. A typical benchmark task costs about $0.77 at medium effort.
Is GPT-5.5 free to use?›
There is no free API; the cheapest paid price is $5 per 1M input tokens.
How good is GPT-5.5, and what is it best at?›
#37 of 336 in Chat & Knowledge, #46 of 134 in Coding, #44 of 135 in Agents & Tool Use, #20 of 197 in Writing & Language, #13 of 125 in Vision & Documents. Strongest at: Tool calling, Reasoning, Science, Long context, Knowledge, Instructions, Vision.
Is GPT-5.5 better than GPT-5.4?›
On IFBench (instructions), GPT-5.5 scores 75.9 vs 73.9 — higher.
How can I use GPT-5.5?›
Through the API of Amazon Bedrock, Azure, OpenAI.
What is the context window of GPT-5.5?›
1.05M tokens, with up to 128K output tokens.
When was GPT-5.5 released? Is there a newer version?›
Released 2026-04-23. It has been superseded by GPT-5.6 Sol.
Is GPT-5.5 open source?›
No, GPT-5.5 is a closed model available through an API. The closest open-weights option here is MiniMax M3.
Can GPT-5.5 read images?›
It accepts text and images, PDF files as input.
What is GPT-5.5?›
GPT-5.5 is a closed language model from OpenAI, released Apr 2026, the successor to GPT-5.4.
What are the best alternatives to GPT-5.5?›
Grok 4.3 (cheaper), GPT-5 Mini (better), MiniMax M3 (open weights).