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Release-note comparison

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ImpactMajorMeaningfulMajorMajor
Change typeModel launchModel launchModel updateModel launch
Capability shiftGoogle says Gemini 3.8 Flash improves over 3.7 Flash across software engineering, agentic tasks and critical multi-…Google positions Flash Cyber as its most capable cybersecurity model, with stronger vulnerability discovery and aut…Fable 5.1 is listed as the current Fable release in first-party Claude release notes and model documentation.Substantial improvements over Gemini 3.6 Flash, including coding, reasoning and multimodal gains in the API release…
AvailabilityAvailable to developers through Gemini API and AI Studio, enterprises through Gemini Enterprise, and consumers thro…Available to trusted governments, critical infrastructure operators and software maintainers through the Fairwind P…Available through Claude and Anthropic platform surfaces according to first-party Claude documentation.Generally available in the Gemini API.
Access statusStatus: GA · Channel: API · Weights: Closed · Pricing: Known · Docs: LinkedStatus: GA · Channel: Unclear · Weights: Closed · Pricing: Unclear · Docs: LinkedStatus: GA · Channel: API · Weights: Closed · Pricing: Unclear · Docs: LinkedStatus: GA · Channel: API · Weights: Closed · Pricing: Known · Docs: Linked
Pricing signalSame introductory price as 3.7 Flash: $0.75 per million input tokens and $3.75 per million output tokens until 31 D…No public pricing change found in the indexed note.No pricing change found in the indexed note.Available at an introductory price through 31 Dec 2026.
Context signalNo context-window change found in the indexed note.No context-window change found in the indexed note.No context-window change found in the indexed note.No context-window change found in the indexed note.
ConfidenceConfirmedConfirmedConfirmedConfirmed
Model launchConfirmed

Gemini 3.8 Flash

ImpactMajor
ContextunknownAccessAPIWeightsclosedPrice$0CheckConfirmed
Availability
StatusGAChannelAPIWeightsClosedPricingKnownDocsLinked
Source qualityLaunch announcementVerified source · 2 receipts

Moves the Flash line beyond Gemini 3.7 with stronger reasoning and coding while keeping the same introductory pricing.

Model launchConfirmed

Gemini 3.8 Flash Cyber

ImpactMeaningful
ContextunknownAccesstrackedWeightsclosedPriceunknownCheckConfirmed
Availability
StatusGAChannelUnclearWeightsClosedPricingUnclearDocsLinked
Source qualityLaunch announcementVerified source · 2 receipts

Adds a specialized cyber-defense release to the Gemini line with constrained access through Google’s Fairwind Program.

Model updateConfirmed

Claude Fable 5.1

ImpactMajor
ContextunknownAccessAPIWeightsclosedPriceunknownCheckConfirmed
Availability
StatusGAChannelAPIWeightsClosedPricingUnclearDocsLinked
Source qualityProduct changelogStrong source · 3 receipts

Updates the tracked Claude frontier tier with canonical release-note and model-doc evidence instead of relying on the older Fable 5 entry.

Model launchConfirmed

Gemini 3.7 Flash

ImpactMajor
ContextunknownAccessAPIWeightsclosedPricevisibleCheckConfirmed
Availability
StatusGAChannelAPIWeightsClosedPricingKnownDocsLinked
Source qualityFirst-party model cardStrong source · 2 receipts

Moves the Flash tier forward from 3.6 to 3.7 and gives developers a newer low-latency default with an introductory price window.