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Gamma
Could a prompt do it?
A persuasive slide narrative, speaker notes and an editable deck when supported.
Get the prompt ↗Before you unsubscribe.
Consider cancelling if…
You mainly need a first draft of a deck and your AI assistant can produce an acceptable editable file, or you will lay out the slides yourself.
Keep the app when…
Keep Gamma if you value its visual editor, custom branding, sharing analytics or publishing features. Its free plan may also cover occasional decks.
Try the prompt on a real task first. A free plan may be enough. Confirm your renewal date and save anything you need before changing your plan.
Subscription vs prompt.
Unverified planning assumption, not a current price quote. Check the linked plan page.
| Model | Per prompt | Reference difference / month* |
|---|---|---|
| GPT-6.1 Sol · Standard | $0.0260–$0.041020 runs: $0.5200–$0.8200 | $9.18–$9.48≈ 91.8–94.8% |
| Claude Sonnet 5.5 · Standard | $0.0260–$0.041020 runs: $0.5200–$0.8200 | $9.18–$9.48≈ 91.8–94.8% |
| Claude Opus 5.5 · Standard | $0.0520–$0.082020 runs: $1.0400–$1.6400 | $8.36–$8.96≈ 83.6–89.6% |
| DeepSeek V4.1 Flash · peak | $0.0033–$0.005120 runs: $0.0660–$0.1020 | $9.90–$9.93≈ 99.0–99.3% |
| DeepSeek V4.1 Flash · off-peak | $0.0016–$0.002620 runs: $0.0330–$0.0510 | $9.95–$9.97≈ 99.5–99.7% |
| GPT-6 Astra · Standard | $0.1300–$0.205020 runs: $2.6000–$4.1000 | $5.90–$7.40≈ 59.0–74.0% |
| Claude Fable 5.1 · Standard | $0.1300–$0.205020 runs: $2.6000–$4.1000 | $5.90–$7.40≈ 59.0–74.0% |
*Reference bill less estimated API tokens. Additional AI charges, tools and review time are excluded here. Enter your actual costs in the personal calculator. Savings require being able to stop paying for the whole subscription. Assumptions
Your source brief, audience, decision and any slide template.
Check citations, readability and exported slides before presenting.
Choosing an assistant: GPT-6.1 Sol / Claude Sonnet 5.5 — value starting points. Claude Opus 5.5 — candidates for harder work. DeepSeek V4.1 Flash — budget candidates. GPT-6 Astra / Claude Fable 5.1 — specialist options. Compare a real task and the tools in your account; no guide claims equal results across models. Choices, limits and sources · Checked 30 September 2026.
Create an eight-slide presentation for [audience] to help them decide [decision]. Use only the attached brief and evidence. Follow the supplied template if available. Start with a one-sentence recommendation, then structure the story around the problem, evidence, options, recommendation and next steps. For each slide provide a takeaway headline, up to three concise bullets, a suggested visual, speaker notes and the source for every factual claim. Mark unsupported claims for review. If presentation-file tools are available, produce an editable deck and inspect its rendered slides for overflow, tiny text and broken charts. Otherwise provide a slide-by-slide outline ready to paste into a presentation app. Do not claim a file exists unless you actually created it. BRIEF: [paste] EVIDENCE: [attach] STYLE: [describe]
What the estimate covers.
One eight-slide text outline; file and image tools excluded. Assumes 3,000 input tokens and 2,000–3,500 output tokens. Follow-up turns, reasoning and tools can increase the cost.
Monthly savings use 20 independent first responses. Chat app subscription fees are separate from API token charges.
Sources & next steps.
Official Gamma product and pricing page ↗
Model rate sources and calculation method ↗
Pricing baseline: 11 September 2026. Grammarly and Otter rechecked 13 September. Unverified plan prices remain labelled as assumptions.
Replacement suitability is our editorial assessment, not a vendor claim or a measured benchmark.