Model comparison

Gemini 3.6 Flash vs Claude Fable 5

Input: $1.50
Output: $7.50
Context: 1M
Released: 2026-07-21

Full model page →AnthropicClaude Fable 5

Input: $10.00
Output: $50.00
Context: 1M
Released: 2026-06-09

Short answer

Claude Fable 5 scores higher on 3 of the 3 benchmarks both models report; Gemini 3.6 Flash is cheaper on input tokens ($1.5 vs $10 per 1M, 6.7×).

Specs and pricing side by side

Spec	Gemini 3.6 Flash	Claude Fable 5
Maker	Google	Anthropic
Released	2026-07-21	2026-06-09
Context window	1M	1Msame
Max output	64K	128K
Input price	$1.50	$10.00
Output price	$7.50	$50.00
Parameters	Not disclosed	Undisclosed
License	Proprietary	Proprietarysame
Weights	API only	API onlysame
Modalities	Text, Vision, Audio, Video, PDF	Text, Vision
Knowledge cutoff	March 2026	not published

Benchmarks both models report

Benchmark	Gemini 3.6 Flash	Claude Fable 5
SWE-Bench Pro	58.7%	80.3%
Terminal-Bench 2.1	78%	88%
OSWorld-Verified	83%	85%

Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.

Which one should you pick?

Pick Gemini 3.6 Flash if…

Cost matters: input tokens cost 6.7× less ($1.5 vs $10 per 1M).
You need Audio / Video / PDF input, which Claude Fable 5 lacks.
Your use case is: reach for it as the default Flash-tier workhorse for agentic coding, computer use, and multi-step tool workflows.

Pick Claude Fable 5 if…

You care about SWE-Bench Pro, Terminal-Bench 2.1, OSWorld-Verified (it scores higher on 3 shared benchmarks).
Your use case is: reach for it for the most demanding multi-step agentic coding across large codebases when you want above-Opus capability.

FAQ

Which is better, Gemini 3.6 Flash or Claude Fable 5?

Claude Fable 5 scores higher on 3 of the 3 benchmarks both models report; Gemini 3.6 Flash is cheaper on input tokens ($1.5 vs $10 per 1M, 6.7×). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.

How much cheaper is Gemini 3.6 Flash?

Gemini 3.6 Flash: $1.50 input, $7.50 output. Claude Fable 5: $10.00 input, $50.00 output (list API prices as published by each maker).

What are the context windows of Gemini 3.6 Flash and Claude Fable 5?

Gemini 3.6 Flash offers 1M with up to 64K output; Claude Fable 5 offers 1M with up to 128K output.

Is Gemini 3.6 Flash newer than Claude Fable 5?

Gemini 3.6 Flash was released 2026-07-21; Claude Fable 5 was released 2026-06-09.