AI chatbot
By Saurav | Founder of saavos | Building in public toward $10k MRR
[!TLDR] At 1,000 messages per month, saavos costs $0.019/message. Botsonic Starter is also $19/mo (GPT-4o-mini, 1,000 messages). FastBots Essential is $39/mo for 2,000 messages — $0.020/msg at capacity, and you pick your own LLM. Chatbase costs $0.064/message (Hobby monthly) or $0.032/message (annual). Botpress Plus costs $0.60 per conversation. Wonderchat Starter comes to $0.029/message. Intercom Fin is metered per resolved ticket. The pricing page never tells you this. The math does — but price parity doesn't mean model parity.
FastBots published a chatbot pricing comparison recently. I checked it. saavos wasn't in it.
I'm the founder of saavos, so take that observation with whatever salt you need. But I figured someone should run the actual per-message math across the platforms that cover the indie SaaS buyer range in 2026, including the one FastBots left out.
All pricing below is from vendor pages as of 2026-05-19. I'll flag what's UNVERIFIED.
Every pricing page shows monthly cost. Almost none show what you get per dollar.
A $19/month plan with 500 messages costs $0.038/message. A $19/month plan with 1,000 messages costs $0.019/message. Same sticker price, completely different economics. Volume is where the platforms diverge — and it's the number that matters when you're evaluating whether a chatbot is worth keeping after month one.
I ran three scenarios: 500 messages/month (small site, early traffic), 1,000 messages/month (starter tier benchmark), and 3,500 messages/month (growing SaaS or busy ecommerce).
All prices monthly unless noted. Annual discount row reflects each vendor's actual discount rate. Overage row is what happens when you hit the cap.
| Platform | Entry paid plan | Model | Messages at entry | Cost/msg at cap | Annual discount | Overage policy |
|---|---|---|---|---|---|---|
| saavos | $19/mo (Starter) | Claude Sonnet 4.6 | 1,000 | $0.019 | 17% off (yearly plan) | Pauses at cap — no charge |
| Botsonic | $19/mo (Starter) | GPT-4o-mini | 1,000 | $0.019 | ~16% off ($16/mo annual) | Add-on purchase; $25/2k extra messages |
| Wonderchat | $29/mo (Starter) | OpenAI (model varies) | 1,000 | $0.029 | 17% off ($25/mo annual) | $29.99/1,000 credits one-time add-on |
| FastBots | $39/mo (Essential) | Any LLM (user selects) | 2,000 | $0.020 | ~17% off ($32.50/mo) | Manual credit top-up or plan upgrade |
| Chatbase | $40/mo (Hobby, monthly) | GPT-4o (default) | 500 credits | $0.080 | 20% off ($32/mo annual) | $40/1,000 credits add-on |
| Chatbase (annual) | $32/mo (Hobby, annual) | GPT-4o (default) | 500 credits | $0.064 | included | $40/1,000 credits add-on |
| Botpress | $189/mo (Plus, monthly) | UNVERIFIED | 250 convos | $0.756/convo | 21% off ($150/mo annual) | $0.65/100 convos auto-added |
| Intercom Fin | $0.99/resolution + platform | GPT-4o | metered | per resolution | UNVERIFIED | Uncapped — bill grows with volume |
Source footnotes:
src/lib/plans.ts and saavos.com/pricingAt 500 messages/month: saavos Starter ($19) covers this volume with 50% headroom. You're paying $0.038/msg, but you won't hit the cap. Chatbase Hobby monthly ($40/mo, 500 credits) is exactly at the cap, no headroom, $0.080/msg. Wonderchat Starter ($29/mo, 1,000 credits) gives you 2× headroom at $0.058/msg at this volume.
At 1,000 messages/month: saavos Starter ($19) is exactly at cap. This is where $0.019/msg comes from. FastBots Essential ($39) covers this with 1,000 messages to spare — its cap is 2,000, so at 1,000 actual usage you're paying $0.039/msg, but with double the headroom. Chatbase needs a plan upgrade to Standard ($150/mo monthly, $120/mo annual) for 4,000 credits — which at 1,000 usage is expensive headroom you're buying and not using. Or you buy overage credits ($40/1,000 on the Hobby plan) — total cost: $80/mo.
At 3,500 messages/month: This is the saavos Pro range ($49/mo, 3,500 messages). Cost: $0.014/msg — cheaper per message than Starter because the plan is designed for this volume. Chatbase Standard covers it ($120/mo annual). FastBots Business ($89/mo monthly, $890/yr annual, 5,000 messages/mo): covers 3,500 with headroom, at $0.025/msg. Wonderchat Basic ($83/mo annual, 5,000 credits): covers it, $0.024/msg at this volume.
Most comparison posts compare monthly prices. Annual contracts change the picture significantly.
| Platform | Annual rate | Monthly rate | Actual discount |
|---|---|---|---|
| saavos Starter | $19/mo (yearly plan) | $19/mo (monthly plan) | 17% off |
| Chatbase Hobby | $32/mo | $40/mo | 20% off |
| Botpress Plus | $150/mo | $189/mo | 21% off |
| Wonderchat Starter | $25/mo | $29/mo | 17% off |
| FastBots Essential | $32.50/mo ($390/yr) | $39/mo | ~17% off |
Wait. saavos's "17% annual discount" in the table above needs explanation. The yearly billing price is $190/year for Starter — which works out to $15.83/month, not $19. The $19 figure is the monthly billing rate. So the annual savings is roughly $38/year ($228 monthly vs $190 annually). Not the most aggressive discount in this group, but the starting price is already the lowest.
One thing I notice: Chatbase Hobby on annual billing ($32/mo) is still $13/month more than saavos Starter monthly ($19/mo). Even with Chatbase's higher annual discount, the saavos monthly rate is cheaper than the Chatbase annual rate. FastBots Essential annual ($32.50/mo) slots almost exactly where Chatbase Hobby annual ($32/mo) does — but FastBots gives you 2,000 messages versus Chatbase's 500 credits. Different products, but the per-message math is very different. That's the gap the pricing page doesn't surface unless you run it.
Chatbots have unpredictable traffic spikes. A Reddit post, a Product Hunt launch, a press mention — any of these can 3–5× your normal volume in 48 hours. What happens to your bill depends almost entirely on overage policy.
saavos Starter and Pro: Bot pauses at cap. No charge. Worst case: some visitors get a "I'm at capacity, come back tomorrow" message. Best case: you upgrade before the spike.
saavos Business: $0.02/message above 15,000/mo cap, hard-capped at $200 additional per period. So your maximum Business bill for any month is $199 + $200 = $399. That's the ceiling. You know it before signing up. (Overage billing is in beta — current overages are absorbed by saavos until metered billing is confirmed stable, target 2026-06.)
Chatbase: $40 per 1,000 credits add-on. Auto-charged or manual, depends on your settings. A 3× traffic spike on Hobby means $120 in add-ons on top of $40 base. Total: $160 in a bad month.
Botpress: Auto-recharge is mandatory on Plus and Team. Packs of 100 conversations at $0.65 are added automatically when you hit 80% usage. You cannot turn it off. On a spike month with 3× normal volume (250 base + 500 extra = 750 extra convos), that's $150 + $0.65 × 500 = $150 + $325 for Plus = $475 for the month. Botpress is transparent about this — they explain it in their FAQ — but it's a real difference from flat-subscription models.
Intercom Fin: Resolution-based with no hard cap. Every resolved conversation is $0.99. Volume spikes translate directly into bill spikes with no ceiling. For a team already on Intercom at scale, this is fine — it's variable cost that tracks revenue. For a solo founder, it's a liability.
I'll be direct here rather than balanced.
On saavos vs Botsonic — the real question is the model, not the price
Both are $19/mo at entry. Same message cap (1,000). So the only honest differentiator is what the bot actually says.
Botsonic's Starter plan is also $19/mo — but it runs on GPT-4o-mini. saavos Starter runs on Claude Sonnet. Same price, different model. Whether that matters to you depends on how precise your bot's answers need to be.
What I can say from my own usage: if you run a $0–$1k MRR SaaS where the bot's job is to deflect "how does this work" questions from a documentation site, model behavior on edge cases matters. A bot that confidently invents an answer is worse than one that says "I'm not sure — here's where to check." Claude's refusal behavior on out-of-scope questions is stricter in my testing on saavos's own codebase. That one behavior difference is worth more than any headline benchmark.
Pick saavos if you're pre-revenue or $0–$1k MRR, want the Anthropic Claude model family rather than OpenAI at the entry price, care about a flat predictable bill with no surprise overages, and need 5-minute setup. That's the lane. We're not competing with Botpress's flow builder or Intercom's CRM integration.
Pick Botsonic if you're already inside the Writesonic/Botsonic product ecosystem (they share an account), want GPT-4o-mini specifically, or need Agentic Actions (tool-use integrations) at the entry tier. Botsonic's 3 Agentic Actions on Starter is something saavos doesn't match yet. That's a real capability gap if your FAQ deflection use case also needs live data fetches.
Pick Wonderchat if you want slightly more sources and workflows at the entry tier. Their Starter gives 100 webpages per agent vs saavos's 10 sources. If you have a large documentation site, that matters.
Pick FastBots if you need live agent takeover from the entry tier — that's a feature saavos doesn't offer, and FastBots has it at Essential ($89/mo Business plan). You're also paying $20/month more at Essential for 2,000 messages vs saavos's 1,000, and you get to pick your own LLM (GPT-4o, Claude Sonnet, Gemini) per bot rather than being locked to one model family. That flexibility has real value for teams that need to tune model choice per use case.
Pick Chatbase if you need WhatsApp, Instagram, or Messenger channels, or if you need model selection (GPT-5, Claude 4, Gemini) per bot. Chatbase has the widest channel and model coverage in this group. At $32/mo annual for Hobby (500 credits), it's also priced for that extra capability.
Pick Botpress if you're a developer who wants to build custom conversation flows, need WhatsApp at scale, or need multi-agent routing. The $150/mo Plus annual is expensive for simple FAQ deflection — but it's the right tool for complex agentic workflows.
Pick Intercom Fin if you're already paying for Intercom and your support volume is high enough that $0.99/resolution beats your current team's per-ticket cost. Don't evaluate Intercom Fin in isolation — it only makes sense as an add-on to the Intercom platform you're already running.
Looking at this comparison, our annual discount (17%) is weaker than Chatbase (20%) or Botpress (21%). If you're choosing between saavos and Chatbase for a 12-month commitment and cost is the only variable, the Chatbase annual gap narrows. I'd rather you know that now than discover it when you're renewing.
What I'd say in response: saavos monthly is still cheaper than Chatbase annual. And we're working on whether a stronger annual discount makes sense. If this matters to your decision, drop me a line at the email on the about page — I'm reading those.
If you want the side-by-side on specific pairs, the saavos vs Chatbase vs FastBots comparison covers model selection, setup time, and training sources in more detail. For pricing and plan specifics, see our pricing page.
Pricing as of 2026-05-19. All FastBots, Botsonic, and Wonderchat figures confirmed via live page fetches 2026-05-19T01:15Z. Botpress model and Intercom Fin annual discount remain unconfirmed — check vendor pages directly before committing.
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Per-message cost at the entry paid tier (1,000 messages/month): saavos $0.019/msg, Botsonic $0.019/msg, Wonderchat $0.029/msg, FastBots $0.039/msg (UNVERIFIED annual discount), Chatbase Hobby $0.064/msg monthly or $0.032/msg annual. Botpress Plus bills per conversation ($0.756/convo at entry tier). Intercom Fin bills per resolved ticket at $0.99 plus a platform subscription. Pricing verified from vendor pages as of 2026-05-19 — FastBots annual discount and overage policy are UNVERIFIED.
Both saavos and Botsonic Starter are $19/month for 1,000 messages — identical on price. The real difference is the model: saavos Starter runs Claude Sonnet 4.6 (Anthropic), Botsonic Starter runs GPT-4o-mini (OpenAI). Claude Sonnet is Anthropic's mid-tier reasoning model; GPT-4o-mini is OpenAI's cost-optimized lightweight model. For FAQ deflection where answer accuracy matters more than cost, the model choice is more important than the price. Botsonic also includes 3 Agentic Actions at entry tier, which saavos does not currently offer.
saavos Starter is $19/month for 1,000 messages ($0.019/message). FastBots Essential is $39/month for 1,000 messages ($0.039/message). Both cover the same volume; FastBots costs 2x more at entry but includes live agent takeover, which saavos does not offer. If you need live agent handoff from the entry tier, FastBots is worth the extra $20. If you need pure FAQ deflection with a flat predictable bill, saavos is cheaper.
It depends on the platform. saavos Starter and Pro: the bot pauses at the cap, no charge. saavos Business: $0.02/message above 15,000 cap, hard-capped at $200 additional per period — your maximum monthly bill is $399. Chatbase: $40/1,000 credit add-ons, auto or manual. Botpress Plus and Team: auto-recharge is mandatory — packs of 100 conversations at $0.65 are added automatically. Intercom Fin: uncapped per-resolution billing that grows with volume.
Botpress has the steepest annual discount (21% off: $189/mo to $150/mo). Chatbase Hobby is 20% off ($40 to $32/mo). saavos Starter is approximately 17% off ($19/mo monthly to effectively $15.83/mo annually, billed as $190/year). Botsonic Starter is approximately 16% off ($19 to $16/mo annual). Wonderchat Starter is roughly 14% off ($29 to $25/mo). Note: saavos monthly ($19/mo) is still cheaper than Chatbase annual ($32/mo), even without committing to a yearly plan.
No, at entry tier. Chatbase Hobby is $40/month billed monthly or $32/month billed annually, with 500 message credits. saavos Starter is $19/month for 1,000 messages — roughly half the price for twice the volume at this tier. Chatbase becomes competitive at Standard ($120/mo annual, 4,000 credits) for users who need higher volume, WhatsApp/Instagram channels, or GPT-5 model access. For website-only FAQ deflection under $25/month, saavos is cheaper.
saavos at $19/month runs Claude Sonnet on all paid tiers (Claude Haiku on the free tier). Chatbase offers Claude 4 models as a selectable option on paid plans. Wonderchat lists Claude models starting from higher tiers. Botpress supports Anthropic models across plans. Of the tools that run Claude by default on the entry paid tier, saavos at $19/month is the cheapest option in this comparison as of May 2026.
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