Same prompt. Two models. What each one costs.

Opus 4.8Fable 5 vs Kimi K2.7 (open), across 12 prompts, with and without the Inspo MCP for real design references.

24 landing pages · Opus 4.8Fable 5
~$11~$24
frontier · closed
24 landing pages · Kimi K2.7
~$1.50
open model · Together AI
Kimi is
≈ 7.6× cheaper≈ 16× cheaper
for comparable pages
Model
Method
Baseline - no skill, no MCP+ Inspo - real production-site references via MCPgreen wins · red loses - per cost · tokens · time

1Build a landing page for a developer tool that turns SQL queries into charts.

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.425.8× priciertok17k≈ eventime2.9m≈ evencost~$1.0915× priciertok22k1.4× moretime3.7m1.2× slowercost~$0.8013× priciertok48k3.2× moretime6.5m5.0× slowercost~$1.2620× priciertok41k2.7× moretime4.3m3.3× slower
Kimi K2.7
cost~$0.152.7× cheaper7.1× cheapertok38k2.3× more1.7× moretime4.7m1.6× slower1.3× slowercost~$0.04617× cheaper27× cheapertok25k1.9× fewer1.6× fewertime41s9.4× faster6.2× fastervia5 Inspo callsautonomous

~$1.22 Opus 4.8~$2.35 Fable 5 · ~$0.20 Kimi K2.7 ≈ 6.1× cheaper≈ 12× cheaper

2Build a long-form feature article for an indie magazine about the last working letterpress shop on the coast.

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.273.2× priciertok11k1.7× fewertime2.3m1.6× fastercost~$0.9511× priciertok19k≈ eventime4.2m≈ evencost~$0.505.2× priciertok36k1.6× moretime7.6m3.6× slowercost~$1.0511× priciertok37k1.7× moretime4.4m2.1× slower
Kimi K2.7
cost~$0.0436.2× cheaper22× cheapertok11k≈ even1.7× fewertime1.4m1.6× faster3.0× fastercost~$0.0975.1× cheaper11× cheapertok59k1.6× more1.6× moretime1.6m4.7× faster2.7× fastervia10 Inspo callsautonomous

~$0.77 Opus 4.8~$2.00 Fable 5 · ~$0.14 Kimi K2.7 ≈ 5.5× cheaper≈ 14× cheaper

3Build a portfolio for an architecture studio that works only in raw board-formed concrete. new

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.316.6× priciertok13k1.2× moretime2.2m≈ evencost~$1.0623× priciertok21k1.9× moretime4.1m2.0× slowercost~$0.487.6× priciertok35k2.5× moretime9.6m6.9× slowercost~$0.9615× priciertok35k2.5× moretime3.7m2.6× slower
Kimi K2.7
cost~$0.0744.2× cheaper14× cheapertok19k1.4× more≈ eventime1.8m1.2× faster2.2× fastercost~$0.04610× cheaper21× cheapertok25k1.4× fewer1.4× fewertime55s10× faster4.0× fastervia4 Inspo callsautonomous

~$0.79 Opus 4.8~$2.02 Fable 5 · ~$0.12 Kimi K2.7 ≈ 6.6× cheaper≈ 17× cheaper

4Build a landing page for a breathwork and sleep app that should feel warm, calm, and unhurried.

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.294.7× priciertok12k1.2× fewertime2.1m1.3× fastercost~$0.8113× priciertok16k1.2× moretime2.9m≈ evencost~$0.476.4× priciertok35k2.0× moretime7.7m4.8× slowercost~$0.9713× priciertok35k2.1× moretime3.4m2.1× slower
Kimi K2.7
cost~$0.0476.2× cheaper17× cheapertok12k≈ even1.3× fewertime57s2.2× faster3.1× fastercost~$0.0776.1× cheaper13× cheapertok62k1.8× more1.8× moretime32s14× faster6.3× fastervia7 Inspo callsautonomous

~$0.76 Opus 4.8~$1.78 Fable 5 · ~$0.12 Kimi K2.7 ≈ 6.1× cheaper≈ 14× cheaper

5Build a landing page for a kids' learn-to-cook app.

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.374.9× priciertok15k≈ eventime2.7m1.2× fastercost~$0.9312× priciertok19k≈ eventime3.3m≈ evencost~$0.628.7× priciertok41k2.5× moretime9.1m6.1× slowercost~$1.1015× priciertok38k2.4× moretime3.8m2.5× slower
Kimi K2.7
cost~$0.0764.9× cheaper12× cheapertok19k1.3× more≈ eventime2.0m1.4× faster1.7× fastercost~$0.0698.9× cheaper16× cheapertok43k≈ even≈ eventime2.1m4.3× faster1.8× fastervia4 Inspo callsautonomous

~$0.99 Opus 4.8~$2.03 Fable 5 · ~$0.15 Kimi K2.7 ≈ 6.8× cheaper≈ 14× cheaper

6Build a landing page for an indie bookstore's weekend literary festival.

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.356.4× priciertok14k1.2× moretime2.6m≈ evencost~$1.0619× priciertok21k1.8× moretime3.9m1.6× slowercost~$0.549.6× priciertok37k2.9× moretime8.2m6.8× slowercost~$1.2221× priciertok40k3.1× moretime4.6m3.8× slower
Kimi K2.7
cost~$0.0744.7× cheaper14× cheapertok19k1.4× more≈ eventime3.2m1.2× slower1.2× fastercost~$0.05310× cheaper23× cheapertok26k1.4× fewer1.5× fewertime1.1m7.8× faster4.4× fastervia3 Inspo callsautonomous

~$0.89 Opus 4.8~$2.28 Fable 5 · ~$0.13 Kimi K2.7 ≈ 7.0× cheaper≈ 18× cheaper

7Build a landing page for an electronic music label's mixtape drop - acid-house, liquid-chrome, Y2K, kinetic. new

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.303.1× priciertok12k1.8× fewertime2.3m1.9× fastercost~$0.828.3× priciertok17k1.3× fewertime3.0m1.4× fastercost~$0.475.0× priciertok35k1.7× moretime32m15× slowercost~$0.869.0× priciertok33k1.6× moretime3.2m1.5× slower
Kimi K2.7
cost~$0.0575.3× cheaper14× cheapertok14k1.2× more1.2× fewertime1.2m1.9× faster2.5× fastercost~$0.04111× cheaper21× cheapertok27k1.3× fewer1.2× fewertime29s66× faster6.6× fastervia6 Inspo callsautonomous

~$0.77 Opus 4.8~$1.68 Fable 5 · ~$0.10 Kimi K2.7 ≈ 7.9× cheaper≈ 17× cheaper

8Build a landing page for an artisanal hot-sauce brand - lucha libre, woodcut, loud and festive Mexican folk art. new

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.292.7× priciertok12k2.0× fewertime2.1m2.2× fastercost~$0.908.2× priciertok18k1.3× fewertime3.3m1.4× fastercost~$0.707.3× priciertok44k2.0× moretime9.1m4.3× slowercost~$1.1512× priciertok39k1.8× moretime4.9m2.3× slower
Kimi K2.7
cost~$0.0724.0× cheaper13× cheapertok18k1.5× more≈ eventime1.6m1.3× faster2.0× fastercost~$0.05513× cheaper21× cheapertok30k1.5× fewer1.3× fewertime53s10× faster5.6× fastervia5 Inspo callsautonomous

~$0.99 Opus 4.8~$2.05 Fable 5 · ~$0.13 Kimi K2.7 ≈ 7.8× cheaper≈ 16× cheaper

9Build a landing page for a rooftop speakeasy cocktail bar - art deco, gold-leaf and emerald, 1920s glamour. new

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.312.6× priciertok13k2.1× fewertime2.4m2.1× fastercost~$0.756.3× priciertok15k1.7× fewertime2.7m1.9× fastercost~$0.456.2× priciertok34k2.0× moretime9.6m6.0× slowercost~$1.1616× priciertok39k2.3× moretime4.0m2.5× slower
Kimi K2.7
cost~$0.0456.9× cheaper17× cheapertok11k≈ even1.3× fewertime1.1m2.3× faster2.5× fastercost~$0.0775.9× cheaper15× cheapertok56k1.7× more1.4× moretime47s12× faster5.1× fastervia6 Inspo callsautonomous

~$0.76 Opus 4.8~$1.91 Fable 5 · ~$0.12 Kimi K2.7 ≈ 6.3× cheaper≈ 16× cheaper

10Build a landing page for an independent perfume house. new

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.232.7× priciertok10k2.0× fewertime1.8m2.0× fastercost~$0.9311× priciertok19k≈ eventime3.3m≈ evencost~$0.424.5× priciertok32k1.5× moretime11m5.5× slowercost~$1.0411× priciertok37k1.7× moretime3.7m1.9× slower
Kimi K2.7
cost~$0.0623.7× cheaper15× cheapertok16k1.6× more1.2× fewertime1.7m≈ even1.9× fastercost~$0.0557.6× cheaper19× cheapertok38k1.2× more≈ eventime41s16× faster5.4× fastervia6 Inspo callsautonomous

~$0.65 Opus 4.8~$1.97 Fable 5 · ~$0.12 Kimi K2.7 ≈ 5.5× cheaper≈ 17× cheaper

11Build a landing page for an AI voice-cloning studio.

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.383.8× priciertok16k1.5× fewertime2.7m1.6× fastercost~$1.0811× priciertok22k≈ eventime3.7m1.2× fastercost~$0.6510× priciertok42k2.8× moretime9.6m6.9× slowercost~$1.0517× priciertok37k2.5× moretime3.5m2.5× slower
Kimi K2.7
cost~$0.0389.9× cheaper28× cheapertok9.8k1.6× fewer2.3× fewertime1.3m2.0× faster2.8× fastercost~$0.04116× cheaper26× cheapertok20k2.1× fewer1.8× fewertime55s10× faster3.8× fastervia4 Inspo callsautonomous

~$1.03 Opus 4.8~$2.13 Fable 5 · ~$0.08 Kimi K2.7 ≈ 13× cheaper≈ 27× cheaper

12Build a landing page for a B2B SaaS startup - a team project-management & collaboration tool (tasks, timelines, team workflows, integrations). new

Baselineno skill · no MCP
+ Insporeal-reference MCP
Opus 4.8
Fable 5
cost~$0.857.0× priciertok34k1.3× moretime5.6m≈ evencost~$1.099.1× priciertok22k1.2× fewertime3.7m1.4× fastercost~$0.9411× priciertok54k2.7× moretime5.6m2.9× slowercost~$1.1413× priciertok39k2.0× moretime4.0m2.1× slower
Kimi K2.7
cost~$0.04917× cheaper22× cheapertok12k2.7× fewer1.8× fewertime1.7m3.3× faster2.2× fastercost~$0.05418× cheaper21× cheapertok26k2.1× fewer1.5× fewertime47s7.2× faster5.1× fastervia4 Inspo callsautonomous

~$1.79 Opus 4.8~$2.23 Fable 5 · ~$0.10 Kimi K2.7 ≈ 17× cheaper≈ 22× cheaper