All Changes
MajorOpenAIopenai-gpt-image-2
Sep 30, 2026 (UTC)New gpt-image-2.5 image models added to OpenAI pricing
Impact
Cost Impact: HighMigration: Recommended3/5
MajorAnthropicanthropic-claude-sonnet-5
Sep 28, 2026 (UTC)Claude Sonnet 5.5 released, replacing Sonnet 5
Impact
Migration: Recommended3/5
ImportantGoogle AIgoogle-ai-pricing
Sep 24, 2026 (UTC)Google AI audio pricing doubles starting January 1, 2027
Impact
Cost Impact: HighPublished5/5
ImportantGoogle AIgoogle-gemini-3.8-flash
Sep 23, 2026 (UTC)Gemini 3.8 Flash TTS pricing introduced with 2027 rate increase
Impact
Cost Impact: High5/5
MajorAnthropicanthropic-claude-opus-5
Sep 23, 2026 (UTC)Anthropic Claude model lineup updated with new IDs, pricing, and retirement date
Impact
Cost Impact: HighMigration: Required4/5
MajorOpenAIopenai-gpt-6-astra
Sep 22, 2026 (UTC)GPT-6 Sol and Luna replace GPT-5.6 lineup with lower pricing
Impact
Cost Impact: HighMigration: Recommended4/5
MajorAnthropicanthropic-claude-fable-5.1
Sep 22, 2026 (UTC)Claude Opus 5.5 replaces Opus 5 with lower pricing and new API ID
Impact
Cost Impact: HighMigration: Required4/5
MajorOpenAIopenai-gpt-4.1
Sep 21, 2026 (UTC)OpenAI adds new model pricing tiers and tool billing details
Impact
Cost Impact: High4/5
MajorGoogle AIgoogle-gemini-3.1-flash-live-preview
Sep 15, 2026 (UTC)Gemini Live pricing page adds 3.8 Live and Extended Thinking models
Impact
Cost Impact: HighMigration: Recommended4/5
MajorOpenAIopenai-gpt-6-astra
Sep 11, 2026 (UTC)OpenAI adds gpt-rosalind-research model with new pricing tiers
Impact
Cost Impact: High3/5
MajorGoogle AIgemini-robotics-er-1-6-preview
Sep 11, 2026 (UTC)Gemini 2.5 Flash Image deprecation notice on pricing page
Impact
Migration: Required4/5
MajorDeepSeekdeepseek-deepseek-v4-pro
Sep 11, 2026 (UTC)DeepSeek V4 Pro retirement reversed; API service continues
Impact
Cost Impact: LowMigration: RecommendedPublished3/5
MajorDeepSeekdeepseek-v4-flash
Sep 10, 2026 (UTC)DeepSeek V4.1-Flash replaces V4-Flash; vision model removed
Impact
Cost Impact: HighMigration: Recommended4/5
MajorOpenAIopenai-gpt-image-2
Sep 8, 2026 (UTC)OpenAI replaces gpt-image-2 with gpt-image-2.5 variants at same price
Impact
Migration: Required4/5
ImportantGoogle AIgoogle-ai-pricing
Sep 8, 2026 (UTC)Google AI pricing update: scheduled price increases effective Jan 1, 2027
Impact
Cost Impact: HighPublished5/5
ImportantOpenAIgpt-6-astra
Sep 3, 2026 (UTC)OpenAI launches GPT-6 Astra with new pricing tiers
Impact
Cost Impact: HighMigration: Required5/5
MajorGoogle AIgemini-3-7-flash
Sep 2, 2026 (UTC)Gemini 3.7 Flash replaced by Gemini 3.8 Flash on pricing page
Impact
Cost Impact: LowMigration: RequiredPublished4/5
MajorAnthropicclaude-haiku-4.5
Sep 1, 2026 (UTC)Anthropic introduces Claude Fable 5.1, replacing Fable 5
Impact
Cost Impact: LowMigration: RecommendedPublished3/5
MajorGoogle AIgemini-3-7-flash
Aug 27, 2026 (UTC)Gemini 3.7 Flash launch with pricing page updates
Impact
Cost Impact: HighMigration: Recommended3/5
MajorAnthropicclaude-code
Aug 14, 2026 (UTC)Anthropic docs page structure update with new model announcements
Impact
Cost Impact: Low3/5