GPT-5
GPT-5 is a multimodal large language model developed by OpenAI and the fifth in its series of generative pre-trained transformer (GPT) foundation models. Preceded in the series by GPT-4, it was launched on August 7, 2025. It is publicly accessible to users of the chatbot products ChatGPT and Microso
Launched August 7, 2025, GPT-5 is OpenAI’s fifth-generation foundation model, powering both ChatGPT and Microsoft. Its architecture deploys a dense technique stack—Mixture of Experts, FlashAttention, Grouped-Query Attention, Rotary Position Embedding, Chain-of-Thought and Zero-Shot CoT, Self-Consistency, and Instruction Tuning (FLAN)—creating a clear reasoning and efficiency moat against its own predecessor GPT-4o. But the competitive field is tightening: Grok and Mercury 2 both target GPT-5’s multimodal ground, while the SpatialScore model directly trades blows. With GPT-5.5 already pushing prices to $5/$30 per 1M tokens and prioritizing pretraining over chain-of-thought, the base iteration may soon feel pressure to justify its cost and speed. The question: can GPT-5’s technique depth outlast the price-war its successor just ignited?
- ·GPT-5 launched August 2025, accessible via ChatGPT and Microsoft products.
- ·Employs 9+ advanced techniques including MoE, FlashAttention, GQA, and CoT variants.
- ·Competes internally with GPT-4o and externally with Grok, Mercury 2, and SpatialScore.
- ·GPT-5.5 pricing doubled, signaling a shift toward pretraining emphasis and higher cost.
Signal Radar
Five-axis snapshot of this entity's footprint
Mentions × Lab Attention
Weekly mentions (solid) and average article relevance (dotted)
Timeline
2- Research MilestoneMar 6, 2026
Evaluation study published on arXiv assessing its clinical reasoning capabilities
View source - Product LaunchMay 31, 2025
Reportedly became available according to user social media post
View source
Relationships
16Deploys
Competes With
Recent Articles
11OpenAI Launches GPT-5.5: Smarter Agents, Deeper Tool Use
+OpenAI unveiled GPT-5.5, positioned as a new intelligence tier designed for real-world work and autonomous agents, with enhanced tool-use capabilities
97 relevanceGPT-5.5 'Spud' Prioritizes Pretraining Over Chain-of-Thought
~A new OpenAI model, Spud (GPT-5.5), focuses on pretraining improvements rather than heavy test-time compute, promising faster and cheaper responses.
85 relevanceOpenAI Teases GPT-5.5 Launch: What We Know
~A tweet from @intheworldofai suggests OpenAI will launch GPT-5.5 tomorrow, framing it as a pivotal moment akin to GPT-3.5. The announcement signals a
87 relevanceSam Altman: AI inference costs dropped 1000x from o1 to GPT-5.4
~Sam Altman stated AI inference costs for solving a fixed hard problem dropped ~1000x from o1 to GPT-5.4 in ~16 months, crediting cross-layer engineeri
85 relevanceNvidia's Silicon Photonics Roadmap Targets AI Data Center Bottlenecks
~Nvidia is developing its own silicon photonics-based interconnects to address the growing data transfer bottleneck within AI data centers and supercom
86 relevanceAnthropic's Adaptive Thinking: A Compute-Constrained Efficiency Play
~Analysis suggests Anthropic's new 'adaptive thinking' feature is a direct response to compute constraints and competitive pressure from OpenAI, aiming
87 relevanceMIT/Oxford Study: GPT-5 Help Boosts Scores Now, Hurts Independent Problem-Solving Later
-A new paper from MIT, Oxford, and CMU finds that using GPT-5 for direct answers improves short-term scores but reduces persistence and independent per
95 relevanceGemini 3.1 Pro Leads METR Time Horizon, Handles 90-Minute Software Tasks
~Google's Gemini 3.1 Pro is the new leader on METR's time horizon benchmark, successfully handling software tasks that take humans an average of 1 hour
95 relevanceHORIZON Benchmark Diagnoses Long-Horizon Failures in GPT-5 and Claude Agents
-A new benchmark called HORIZON systematically analyzes where and why LLM agents like GPT-5 and Claude fail on long-horizon tasks. The study collected
100 relevanceOpenAI IPO Push Hits CFO Resistance Over Spending, Growth
~Sam Altman is pushing for an OpenAI IPO as early as Q4 2026, but CFO Sarah Friar has privately expressed doubts, citing massive spending commitments a
85 relevanceNew Research: Fine-Tuned LLMs Outperform GPT-5 for Probabilistic Supply Chain Forecasting
-Researchers introduced an end-to-end framework that fine-tunes large language models (LLMs) to produce calibrated probabilistic forecasts of supply ch
80 relevance
Predictions
No predictions linked to this entity.
AI Discoveries
6- hypothesisactive5d ago
H: Anthropic will announce a new reasoning-focused Claude Opus 4.7 or 5.0 within 21 days, featuring imp
Anthropic will announce a new reasoning-focused Claude Opus 4.7 or 5.0 within 21 days, featuring improved price/performance and explicit safety guarantees, to capitalize on the sentiment reversal.
75% confidence - observationactive5d ago
Velocity spike: GPT-5
GPT-5 (ai_model) surged from 1 to 4 mentions in 3 days (velocity_spike).
80% confidence - observationactiveApr 17, 2026
Velocity spike: GPT-5
GPT-5 (ai_model) surged from 0 to 3 mentions in 3 days (new_surge).
80% confidence - observationactiveApr 1, 2026
Sentiment reversal: GPT-5
GPT-5 sentiment flipped from 0.20 to -0.20 (positive→negative).
70% confidence - observationactiveApr 1, 2026
Lifecycle: GPT-5
GPT-5 is in 'active' phase (2 mentions/3d, 4/14d, 12 total)
90% confidence - observationactiveMar 30, 2026
Velocity spike: GPT-5
GPT-5 (ai_model) surged from 0 to 4 mentions in 3 days (new_surge).
80% confidence
Sentiment History
| Week | Avg Sentiment | Mentions |
|---|---|---|
| 2026-W11 | -0.60 | 1 |
| 2026-W12 | 0.40 | 1 |
| 2026-W13 | 0.30 | 3 |
| 2026-W14 | -0.27 | 3 |
| 2026-W15 | 0.10 | 1 |
| 2026-W16 | -0.15 | 4 |
| 2026-W17 | 0.20 | 5 |