aiticker

OpenAI · Released Apr 24, 2026

GPT-5.5

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...

ReasoningVision
  • #1Terminal-Bench
  • Top 8%Chess Puzzles
  • Top 12%CritPt
  • #1ExploitBench
Compare in showdown → OpenRouter ↗ All OpenAI models
Released
Apr 24 2026
Context window
1.05M 128K out
Input / 1M tokens
$5.00 from Free
Output / 1M tokens
$30.00 from Free

Where to run it

50 providers compared

Free to try on UnoRouter — free endpoints are often limited-time and rate-limited. Included in GitLab Duo. Cheapest: UnoRouter at $0.19 / $1.13 per 1M input / output tokens — 98% less than the priciest option.

ProviderInputOutputCache readContextMax outputUptimevs. best
UnoRouterfree · may be limited-time Free Free —1.05M128K— Free
GitLab Duosubscription plan Plan Plan —1.05M128K— Plan
UnoRouter $0.19 $1.13 —1.05M128K— Cheapest
OpenAI $2.50 $15.00 $0.251.05M128K100%24h +1232%
Xpersona $3.00 $18.00 $0.301M128K— +1499%
Poe $4.55 $27.27 $0.46400K128K— +2322%
OpenAI $5.00 $30.00 $0.501.05M128K100%24h +2564%
Azure $5.00 $30.00 $0.501.05M128K99%24h +2564%
NanoGPT $5.00 $30.00 $0.501.05M128K— +2564%
FrogBot $5.00 $30.00 $0.50272K128K— +2564%
Cloudflare AI Gateway $5.00 $30.00 —1M128K— +2564%
GMI Cloud $5.00 $30.00 $0.501.05M128K— +2564%
Venice AI $5.00 $30.00 $0.501M131K— +2564%
Snowflake Cortex $5.00 $30.00 $0.501.05M128K— +2564%
Kilo Gateway $5.00 $30.00 $0.501.05M128K— +2564%
LLM Gateway $5.00 $30.00 $0.501.05M128K— +2564%
HPC-AI $5.00 $30.00 $0.501.05M128K— +2564%
FreeModel $5.00 $30.00 $0.501.05M128K— +2564%
DaoXE $5.00 $30.00 $0.501.05M128K— +2564%
Databricks $5.00 $30.00 $0.501.05M128K— +2564%
Pioneer $5.00 $30.00 $0.501.05M128K— +2564%
AI-ROUTER $5.00 $30.00 $0.501.05M128K— +2564%
FastRouter $5.00 $30.00 $0.501.05M128K— +2564%
SAP AI Core $5.00 $30.00 $0.501.05M128K— +2564%
AIHubMix $5.00 $30.00 $0.501.05M128K— +2564%
302.AI $5.00 $30.00 $0.501.05M128K— +2564%
DigitalOcean $5.00 $30.00 $0.501M128K— +2564%
ZenMux $5.00 $30.00 $0.501.05M128K— +2564%
GitHub Copilot $5.00 $30.00 $0.501.05M128K— +2564%
Perplexity Agent $5.00 $30.00 $0.501.05M128K— +2564%
Prime Inference $5.00 $30.00 —1.05M128K— +2564%
Neon $5.00 $30.00 $0.501.05M128K— +2564%
Azure Cognitive Services $5.00 $30.00 $0.501.05M128K— +2564%
Vivgrid $5.00 $30.00 $0.501.05M128K— +2564%
Abacus $5.00 $30.00 $0.501M128K— +2564%
CrossModel $5.00 $30.00 $0.501.05M128K— +2564%
DevPass (LLM Gateway) $5.00 $30.00 $0.501.05M128K— +2564%
CommandCode $5.00 $30.00 $0.50400K128K— +2564%
Merge Gateway $5.00 $30.00 $0.501.05M128K— +2564%
Ofox $5.00 $30.00 $0.501.05M128K— +2564%
LowRouter $5.00 $30.00 $0.501.05M128K— +2564%
Impossibl $5.00 $30.00 $0.501.05M128K— +2564%
OrcaRouter $5.00 $30.00 $0.501.05M128K— +2564%
OpenCode $5.00 $30.00 $0.501.05M128K— +2564%
NEAR AI Cloud $5.00 $30.00 $0.501.05M128K— +2564%
Eden AI $5.00 $30.00 $0.501.05M128K— +2564%
Opper $5.00 $30.00 $0.501.05M128K— +2564%
Azureus $5.50 $33.00 $0.551.05M128K100%24h +2831%
Azureeu $5.50 $33.00 $0.551.05M128K— +2831%
Amazon Bedrockus-east-1 $5.50 $33.00 $0.551.05M128K— +2831%
Requesty $5.50 $33.00 $0.551.05M128K— +2831%
Kenari $5.71 $36.00 $0.571.05M128K— +3046%
AI/ML API $6.50 $39.00 $0.651.05M128K— +3364%
OpenAIfast $12.50 $75.00 $1.251.05M128K— +6561%
Vercel AI Gateway $12.50 $75.00 $1.251M128K— +6561%

Value

Price vs. performance

32 models score higher for the same price or lesson GPQA Diamond, e.g. Gemini 4 Argon.
23.2%47.6%72.0%96.4% $0.001$0.01$0.10$1.00$10.00$100.00 DeepSeek V4.1 Flash 1017 (DeepSeek) — 93.2% · $0.15/1M in Gemini 4 Argon (Google) — 96.4% · $2.00/1M in Claude Haiku 5.5 (Anthropic) — 89.6% · $0.10/1M in Mistral Large 4 (Mistral) — 88.1% · $1.36/1M in Claude Sonnet 5.5 (Anthropic) — 95.6% · $2.00/1M in Claude Opus 5.5 (Anthropic) — 90.6% · $4.00/1M in Grok 4.7 (xAI) — 92.7% · $2.00/1M in DeepSeek V4.1 Flash (DeepSeek) — 93.2% · $0.30/1M in Qwen3.8 Max (0902) (Qwen) — 92.7% · $2.00/1M in Gemini 3.8 Flash (Google) — 95.4% · $0.82/1M in GLM 5.3 Flash (Z.ai) — 90.1% · $0.005/1M in GLM 5.3 (Z.ai) — 90.9% · $0.079/1M in Gemini 3.7 Flash (Google) — 94.8% · $0.75/1M in DeepSeek V4 Pro 0813 (DeepSeek) — 91.7% · $0.66/1M in Grok 4.6 (xAI) — 94.0% · $2.00/1M in DeepSeek V4 Flash 0731 (DeepSeek) — 91.0% · $0.047/1M in Qwen3.7 Flash (Qwen) — 82.3% · $0.03/1M in Claude Opus 5 (Anthropic) — 93.9% · $5.00/1M in Gemini 3.6 Flash (Google) — 94.1% · $0.75/1M in Gemini 3.5 Flash Lite (Google) — 83.3% · $0.30/1M in Kimi K3 (Moonshot AI) — 93.1% · $0.24/1M in Grok 4.5 (xAI) — 93.4% · $2.00/1M in Claude Sonnet 5 (Anthropic) — 90.5% · $2.00/1M in GLM 5.2 (Z.ai) — 91.9% · $0.034/1M in Kimi K2.7 Code (Moonshot AI) — 87.9% · $0.67/1M in Claude Fable 5 (Anthropic) — 85.9% · $10.00/1M in Qwen3.7 Plus (Qwen) — 87.9% · $0.32/1M in MiniMax M3 (MiniMax) — 90.9% · $0.30/1M in Claude Opus 4.8 (Anthropic) — 91.0% · $5.00/1M in Qwen3.7 Max (Qwen) — 90.9% · $1.48/1M in Gemini 3.5 Flash (Google) — 92.8% · $1.50/1M in Gemini 3.1 Flash Lite (Google) — 81.8% · $0.25/1M in Grok 4.3 (xAI) — 88.8% · $1.25/1M in Qwen3.5 Plus 2026-04-20 (Qwen) — 84.9% · $0.30/1M in Qwen3.6 Flash (Qwen) — 83.3% · $0.19/1M in Qwen3.6 35B A3B (Qwen) — 84.9% · $0.10/1M in Qwen3.6 27B (Qwen) — 85.9% · $0.25/1M in DeepSeek V4 Pro 0423 (DeepSeek) — 91.7% · $0.44/1M in DeepSeek V4 Flash 0423 (DeepSeek) — 91.0% · $0.091/1M in Kimi K2.6 (Moonshot AI) — 90.8% · $0.65/1M in Claude Opus 4.7 (Anthropic) — 90.1% · $5.00/1M in GLM 5.1 (Z.ai) — 89.9% · $1.40/1M in Gemma 4 26B A4B (Google) — 73.2% · $0.09/1M in Gemma 4 31B (Google) — 75.8% · $0.20/1M in Qwen3.6 Plus (Qwen) — 88.4% · $0.33/1M in Mistral Small 4 (Mistral) — 47.5% · $0.15/1M in Qwen3.5-9B (Qwen) — 79.0% · $0.08/1M in Gemini 3.1 Flash Lite Preview (Google) — 81.8% · $0.25/1M in Qwen3.5-35B-A3B (Qwen) — 83.5% · $0.14/1M in Gemini 3.1 Pro Preview (Google) — 94.4% · $2.00/1M in Claude Sonnet 4.6 (Anthropic) — 87.4% · $3.00/1M in Qwen3.5 397B A17B (Qwen) — 86.4% · $0.50/1M in GLM 5 (Z.ai) — 87.8% · $1.00/1M in Claude Opus 4.6 (Anthropic) — 90.5% · $5.00/1M in GLM 4.7 Flash (Z.ai) — 60.5% · $0.061/1M in GLM 4.7 (Z.ai) — 83.3% · $0.54/1M in Gemini 3 Flash Preview (Google) — 89.4% · $0.50/1M in Ministral 3 8B 2512 (Mistral) — 27.2% · $0.15/1M in Ministral 3 3B 2512 (Mistral) — 25.3% · $0.10/1M in Mistral Large 3 2512 (Mistral) — 51.3% · $0.50/1M in Claude Opus 4.5 (Anthropic) — 86.1% · $5.00/1M in Claude Haiku 4.5 (Anthropic) — 71.2% · $1.00/1M in Claude Sonnet 4.5 (Anthropic) — 82.3% · $3.00/1M in Claude Opus 4.1 (Anthropic) — 77.3% · $15.00/1M in Qwen3 30B A3B Instruct 2507 (Qwen) — 55.6% · $0.09/1M in Qwen3 235B A22B Thinking 2507 (Qwen) — 80.0% · $0.45/1M in Qwen3 235B A22B Instruct 2507 (Qwen) — 70.7% · $0.09/1M in Gemini 2.5 Pro (Google) — 85.3% · $1.25/1M in Gemini 2.5 Pro Preview 06-05 (Google) — 85.3% · $1.25/1M in R1 0528 (DeepSeek) — 76.3% · $0.50/1M in Qwen3 30B A3B (Qwen) — 61.7% · $0.12/1M in Qwen3 14B (Qwen) — 63.8% · $0.12/1M in Qwen3 32B (Qwen) — 65.7% · $0.08/1M in Gemma 3 4B (Google) — 23.2% · $0.04/1M in Gemma 3 12B (Google) — 39.5% · $0.05/1M in Gemma 3 27B (Google) — 47.7% · $0.08/1M in Qwen-Plus (Qwen) — 48.1% · $0.26/1M in Phi 4 (Microsoft) — 56.1% · $0.07/1M in DeepSeek V3 (DeepSeek) — 71.2% · $0.26/1M in Llama 3.3 70B Instruct (Meta) — 47.4% · $0.10/1M in Mistral Large 2407 (Mistral) — 51.3% · $2.00/1M in Llama 3.2 1B Instruct (Meta) — 23.9% · $0.027/1M in Llama 3.1 70B Instruct (Meta) — 44.2% · $0.40/1M in Llama 3.1 8B Instruct (Meta) — 27.0% · $0.05/1M in Gemma 2 27B (Google) — 36.5% · $0.65/1M in Mistral Large (Mistral) — 51.3% · $2.00/1M in GPT-6.1 Sol (OpenAI) — 95.4% · $2.00/1M in GPT-6 Luna (OpenAI) — 90.5% · $0.10/1M in GPT-6 Sol (OpenAI) — 94.3% · $2.00/1M in GPT-6 Astra (OpenAI) — 95.8% · $10.00/1M in GPT-5.6 Luna (OpenAI) — 91.6% · $0.20/1M in GPT-5.6 Terra (OpenAI) — 93.3% · $2.00/1M in GPT-5.6 Sol (OpenAI) — 93.5% · $4.00/1M in GPT-5.4 Nano (OpenAI) — 78.5% · $0.20/1M in GPT-5.4 Mini (OpenAI) — 86.9% · $0.75/1M in GPT-5.4 Pro (OpenAI) — 94.6% · $30.00/1M in GPT-5.4 (OpenAI) — 93.3% · $2.50/1M in GPT-5.2 (OpenAI) — 91.4% · $1.75/1M in GPT-5.1 (OpenAI) — 87.6% · $1.25/1M in GPT-5 (OpenAI) — 86.2% · $1.25/1M in GPT-5 Mini (OpenAI) — 75.0% · $0.25/1M in GPT-5 Nano (OpenAI) — 69.4% · $0.05/1M in gpt-oss-120b (OpenAI) — 75.8% · $0.15/1M in gpt-oss-20b (OpenAI) — 60.8% · $0.018/1M in o3 (OpenAI) — 81.8% · $2.00/1M in o4 Mini (OpenAI) — 79.6% · $1.10/1M in GPT-4.1 (OpenAI) — 66.9% · $2.00/1M in GPT-4.1 Mini (OpenAI) — 65.8% · $0.40/1M in GPT-4.1 Nano (OpenAI) — 48.9% · $0.10/1M in o3 Mini (OpenAI) — 77.0% · $1.10/1M in o1 (OpenAI) — 76.8% · $15.00/1M in GPT-4o (2024-11-20) (OpenAI) — 49.2% · $2.50/1M in GPT-4o (2024-08-06) (OpenAI) — 49.2% · $2.50/1M in GPT-4o-mini (OpenAI) — 37.7% · $0.15/1M in GPT-4o-mini (2024-07-18) (OpenAI) — 37.7% · $0.15/1M in GPT-4o (OpenAI) — 49.2% · $2.50/1M in GPT-4o (2024-05-13) (OpenAI) — 49.2% · $5.00/1M in GPT-4 Turbo (OpenAI) — 46.6% · $10.00/1M in GPT-3.5 Turbo (older v0613) (OpenAI) — 28.0% · $1.00/1M in GPT-3.5 Turbo (OpenAI) — 28.0% · $0.50/1M in GPT-4 (OpenAI) — 35.7% · $30.00/1M in GPT-5.5 (OpenAI) — 90.7% · $5.00/1M in GPT-5.5

GPT-5.5 Other OpenAI Other labs Value frontier · GPQA Diamond vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.

Benchmarks

30 benchmark scores

BenchmarkScoreRankLeader
DeepSWESoftware engineering · Original long-horizon tasks across active open-source repos 67.0% #11of 26 GPT-6 Astra74.1%
FrontierCodeSoftware engineering · Mergeable fixes for hard open-source issues 43.0% #19of 41 Claude Opus 5.554.6%
Terminal-BenchSoftware engineering · Tasks completed with the programs in a real terminal (best agent) 84.7% #1of 40 This model
MirrorCodeSoftware engineering · Reimplement whole programs end-to-end without the source 10.0% #9of 10 Claude Opus 5.577.4%
GBAEvalSoftware engineering · Build a Game Boy Advance emulator from scratch 53.2% #6of 23 Claude Opus 579.6%
GSOSoftware engineering · Optimize real code to make it significantly faster 40.2% #8of 27 Claude Fable 5.188.2%
SciCodeSoftware engineering · Research-coding problems from the natural sciences 56.1% #23of 102 Claude Opus 5.566.9%
APEX-AgentsAgents & computer use · Long professional tasks in banking, consulting and law 55.1% #18of 51 Gemini 4 Argon82.4%
Remote Labor IndexAgents & computer use · Real paid freelance projects done end-to-end 6.3% #6of 13 Claude Opus 5.521.3%
OSWorld 2.0Agents & computer use · Long real-world desktop and web tasks 13.0% #5of 9 Claude Opus 531.4%
Vending-Bench 2Agents & computer use · Run a simulated vending business for a year (final balance) $7,524 #14of 61 GPT-6 Astra$15,515
PostTrainBenchAgents & computer use · Post-train small models under a fixed compute budget 27.2% #8of 11 Claude Fable 541.8%
DeepResearch BenchWriting & content · Find and synthesize information from the web 54.0% #4of 21 Claude Opus 4.655.3%
GDP.pdfWriting & content · Answer questions about real professional PDFs 26.0% #11of 38 GPT-6.1 Sol35.0%
SimpleQA VerifiedWriting & content · Factual accuracy on 1,000 short questions 63.0% #14of 79 Gemini 4 Argon76.0%
WebDev ArenaDesign & visual · People vote on which model builds the better website (Elo) 1510 #43of 90 Claude Opus 5.51820
Blueprint-Bench 2Design & visual · Turn apartment photos into 2D floor plans 36.2% #9of 32 Gemini 4 Argon54.4%
Furniture AssemblyDesign & visual · Spot mistakes in photos of IKEA builds 44.2% #12of 34 Claude Opus 5.583.3%
ExploitBenchCybersecurity · Exploit real, hardened security vulnerabilities 47.4% #1of 8 This model
GPQA DiamondReasoning & knowledge · PhD-level biology, chemistry and physics questions 90.7% #35of 122 Gemini 4 Argon96.4%
ARC-AGI-2Reasoning & knowledge · Few-shot abstract reasoning on grid puzzles 85.0% #11of 75 GPT-6 Astra95.0%
ARC-AGI-1Reasoning & knowledge · Pattern induction from input–output examples 95.0% #15of 75 Gemini 4 Argon98.5%
SimpleBenchReasoning & knowledge · Common-sense trick questions about space, time and people 69.0% #12of 58 Claude Fable 581.9%
CritPtReasoning & knowledge · Open-ended, research-level physics problems 27.1% #13of 111 GPT-5.6 Sol32.3%
Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles 63.0% #6of 83 GPT-6 Astra76.0%
LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts 54.3% #15of 123 Claude Sonnet 5.568.3%
FrontierMathMaths · Expert-written problems, undergrad to early research (tiers 1–3) 85.3% #13of 87 GPT-6.1 Sol93.7%
FrontierMath Tier 4Maths · Exceptionally hard research-level problems 72.5% #12of 64 GPT-6.1 Sol100.0%
ProofBenchMaths · Graduate maths proofs verified in Lean 4 50.0% #31of 70 Claude Sonnet 5.5100.0%
OTIS Mock AIMEMaths · Competition-style problems harder than MATH Level 5 84.4% #66of 120 Gemini 4 Argon100.0%

Specs

Details

Model ID
openai/gpt-5.5
Developer
OpenAI
Release date
Apr 24, 2026 ·
Context window
1,050,000 tokens
Max output
128,000 tokens
API price
$5.00 / $30.00 per 1M input / output tokens
Providers
50
Input types
file, image, text
Reasoning
Yes
Tool calling
Yes
Open weights
No
Free tier
No

Release date and prices from OpenRouter's catalog; providers from OpenRouter and models.dev. Buying directly from a provider can cost a little differently. Speed, latency and uptime are measured on OpenRouter only; uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.