# GPT 5.5

Type: Product

Source: GetYourBrief — https://getyourbrief.com/entity/gpt-55-f6f753
Canonical HTML page: https://getyourbrief.com/entity/gpt-55-f6f753

## Timeline

- **2026-07-08**: SpaceXAI releases Grok 4.5 — First publicly available model since the SpaceX‑xAI merger; targets coders and knowledge workers with aggressive pricing.
- **2026-07-08**: OpenAI launches GPT‑5.6 Sol — Hours after Grok 4.5’s announcement, OpenAI debuts its new top‑tier model at $5/$30 per million tokens, heightening same‑day competition.

## Recent coverage (4 stories, network-wide)

### Moonshot’s 2.8T Parameter Kimi K3 Shakes AI Race: Startup Implications
2026-07-17 21:13:54 · Sector: startups · Sentiment: Bullish · Impact: 7/10 · Sources: 2

Beijing startup Moonshot AI’s massive open-source Kimi K3 model is outperforming US flagships on coding, triggering a market shock reminiscent of DeepSeek. For AI startups, this signals intensifying competition, the commoditization of foundation models, and a shift toward application-layer value.
Full story: https://getstartupbrief.com/story/moonshot-kimi-k3-startup-impact-2026

### Moonshot’s 2.8T-Param Model Challenges US AI Startup Dominance
2026-07-17 03:31:26 · Sector: startups · Sentiment: Bullish · Impact: 9/10 · Sources: 2

Moonshot AI’s Kimi K3, a 2.8-trillion-parameter open-weight model, competes head-to-head with US frontier models at lower cost, intensifying the global AI startup race and prompting a re-evaluation of venture capital strategies.
Full story: https://getstartupbrief.com/story/moonshot-ai-kimi-k3-startup-competition

### Moonshot’s 2.8T Kimi K3 Outperforms GPT-5.5, Narrows US AI Lead
2026-07-17 03:31:13 · Sector: ai · Sentiment: Bullish · Impact: 9/10 · Sources: 2

Moonshot AI’s Kimi K3, a 2.8 trillion-parameter open-weight model with 1M-token context, beats OpenAI’s GPT-5.5 in GPU optimization and ranks second behind Fable 5, signaling China’s accelerating technical prowess.
Full story: https://getaibrief.com/story/moonshot-ai-kimi-k3-technical-benchmark

### Grok 4.5 Scores 64.7% on SWE Bench Pro, Undercuts Rivals at $2/1M Tokens
2026-07-09 00:03:55 · Sector: ai · Sentiment: Bullish · Impact: 7/10 · Sources: 2

SpaceXAI released Grok 4.5, a coding-focused model priced at just $2/1M input tokens, significantly cheaper than rivals. Musk himself concedes it is “roughly comparable to Opus 4.7”—one generation behind Anthropic’s latest flagship—but emphasizes speed and utility for internal engineers.
Full story: https://getaibrief.com/story/grok-4-5-64-percent-swe-bench-pro

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This page is a machine-readable summary. Sentiment measures the directional read of each development for this entity, not the tone of the reporting; impact weights consequence, not syndication reach. See https://getyourbrief.com/guides/methodology for the full editorial methodology.