September–October 2026 model releases
A 17-part series to help you master this topic step by step.
17 parts in this series
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Series Outline
1
Claude Opus 5.5: Pricing, Breaking Changes and Migration Guide
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2
Claude Sonnet 5.5: Pricing, Performance and Migration Notes
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3
Claude Haiku 5.5: The 100K-Token Price Line and the New Tokenizer
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4
GPT-6 Astra: What It Is, How It Was Deployed and When It's Worth It
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5
GPT-6.1 Sol: Pricing Rules, Ultrafast Mode and Who Should Switch
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6
GPT-6 Sol and GPT-6 Luna: OpenAI's Lower-Cost GPT-6 Tiers
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7
Grok 4.7: Pricing, the 200K Step and the Fast Variant
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8
Grok Voice Transcribe 2.0: xAI's New Speech-to-Text Default
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9
DeepSeek-V4.1-Flash: MIT-Licensed Open Weights and API Pricing
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10
Holo4: Open-Weight Computer-Use Models With Three Different Licenses
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11
Mistral Large 4 Preview: What's Known Before the Weights Ship
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12
Qwen3.8-Omni-Flash: Alibaba's Audio-and-Video Agent Model
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13
Qwen-Image-2.1: Open Weights, Non-Commercial License
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14
EmbeddingGemma 2: Google's Open Multimodal Embedding Model
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15
AI Model Releases, September–October 2026: The Full List
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16
Cohere Embed 5: Pro and Fast Embeddings in One Vector Space
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17
AstaBrief 8B: Ai2's Open Model for Cited Scientific Reports
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Ready to start learning?
Begin with Part 1 and work your way through the series at your own pace.