Is Claude Fable 5 cheaper than GPT-5.6 Sol?

GPT-5.6 Sol is cheaper: roughly $4.40 vs $22 per 1M tokens (blended). Claude Fable 5: $10 in · $50 out / 1M tokens. GPT-5.6 Sol: $2.00 in · $10 out / 1M tokens.

Can I switch between Claude Fable 5 and GPT-5.6 Sol in the same agent?

Yes. Model-agnostic agents (Cline, Aider, OpenClaw, Hermes Agent, Kilo Code, OpenCode) let you swap models per task. Many people route hard tasks to the stronger model and routine work to the cheaper one.

Claude Fable 5 vs GPT-5.6 Sol: Which Is Better? (2026)

Q: Claude Fable 5 vs GPT-5.6 Sol: which is better for agents?

Claude Fable 5 scores higher on output quality (9.0/10 vs 8.6/10), while GPT-5.6 Sol is the cheaper option. Claude Fable 5 is best for existing Fable 5 setups that have not yet moved to Fable 5.1 or Opus 5.5; GPT-5.6 Sol is best for existing GPT-5.6 Sol setups until they move to GPT-6.1 Sol. Live community votes on this page show what people actually prefer.

Community vote

Pick a winner in each dimension. You can change your vote any time.

Output Quality

Correctness and depth of what it produces

Agentic Ability

Tool calls, instruction-following, and multi-step tasks

Speed

Tokens per second and time-to-first-token

Value for Money

How much capability you get per dollar

Reliability

Consistent results: fewer refusals, loops and format breaks

Specs and pricing side by side

Spec

Fable 5

GPT-5.6 Sol

Maker

Anthropic

OpenAI

Blended price / 1M

$22

$4.40

Input / output

$10 in · $50 out / 1M tokens

$2.00 in · $10 out / 1M tokens

Context window

1.1M

Open weights

Tool use

Yes

Reasoning

Yes

Output Quality

9.0

8.6

Agentic Ability

8.3

7.9

Speed

6.8

7.6

Value for Money

4.1

4.6

Reliability

9.4

9.2

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: Fable 5 or GPT-5.6 Sol?

Updated 2026-10-14

Choose Claude Fable 5 if you want existing Fable 5 setups that have not yet moved to Fable 5.1 or Opus 5.5. Choose GPT-5.6 Sol if you want existing GPT-5.6 Sol setups until they move to GPT-6.1 Sol.

In our editorial scoring, Claude Fable 5 leads in 3 of five dimensions (output quality, agentic ability and reliability), while GPT-5.6 Sol leads in 2. On price, Claude Fable 5 runs about $22 per 1M tokens (blended) and is proprietary; GPT-5.6 Sol is about $4.40 and proprietary.

Where Fable 5 falls short