// alternatives · October 2026
GPT-6.1 Sol alternatives
Cheaper models that come close, budget substitutes, and the cheapest step up — chosen on published LiveBench scores and live list price, never on our opinion. Every model here supports tool calling and image input, as GPT-6.1 Sol does.
The closest cheaper alternative to GPT-6.1 Sol is Claude Haiku 5.5 — 14.2 points lower overall, 95% cheaper on LiveBench and list price.
GPT-6.1 Sol: 84.1 overall on LiveBench, $4.00 per 1M blended tokens, about $1,440/mo for a RAG assistant.
Budget substitutes
Within 15 points of GPT-6.1 Sol, cheapest first — and only models that are the best score at their price, so nothing here is beaten by a cheaper pick. Worth testing for high-volume traffic where the last few points matter less than the bill.
| Model | Overall | vs GPT-6.1 Sol | Blended / 1M | RAG assistant | Context |
|---|---|---|---|---|---|
| Claude Haiku 5.5anthropic 14.2 points lower overall, 95% cheaper. Head to head → | 69.8 | −14.2 | $0.200−95% | $74.00/mo | 1M |
| DeepSeek V4.1 Flash 1017deepseek 10.1 points lower overall, 87% cheaper. Head to head → | 74.0 | −10.1 | $0.525−87% | $194.40/mo | 1.0M |
| GPT-6.1 Terraopenai 6.3 points lower overall, 50% cheaper. Head to head → | 77.8 | −6.3 | $2.00−50% | $720.00/mo | 1.1M |
Match it on one task for less
For each LiveBench category, the cheapest model that scores at least as well as GPT-6.1 Sol there. Useful when your workload is mostly one kind of task.
| Category | Cheapest match | Score | Blended / 1M |
|---|---|---|---|
| Coding | DeepSeek V4.1 Flash 1017 | 96.0 vs 96.0 | $0.525−87% |
| Research | SpaceXAI: Grok 4.7 | 86.4 vs 83.5 | $3.00−25% |
| Documents & design | Claude Haiku 5.5 | 83.1 vs 82.1 | $0.200−95% |
Stronger options, cheapest first
Models that beat GPT-6.1 Sol on LiveBench overall, ordered by what the upgrade costs.
| Model | Overall | vs GPT-6.1 Sol | Blended / 1M | RAG assistant | Context |
|---|---|---|---|---|---|
| Claude Opus 5.5anthropic 1.1 points higher overall, 100% more expensive. Head to head → | 85.1 | +1.1 | $8.00 | $2,880/mo | 1M |
| GPT-6 Astraopenai 1.6 points higher overall, 400% more expensive. Head to head → | 85.6 | +1.6 | $20.00 | $7,400/mo | 1.1M |
| Claude Fable 5.1anthropic 1.6 points higher overall, 400% more expensive. Head to head → | 85.7 | +1.6 | $20.00 | $7,100/mo | 1M |
GPT-6.1 Sol alternatives FAQ
What is the cheapest alternative to GPT-6.1 Sol?
Claude Haiku 5.5 at $0.200 per 1M blended tokens, scoring 69.8 overall against GPT-6.1 Sol's 84.1. On a RAG assistant at 100K requests a month that is $74.00 instead of $1,440.
Which model is better than GPT-6.1 Sol?
The cheapest model that scores higher overall on LiveBench is Claude Opus 5.5 — 1.1 points higher overall, 100% more expensive.
Is there a cheaper model that matches GPT-6.1 Sol on specific tasks?
Yes, in 3 of the seven LiveBench categories. For example, coding: DeepSeek V4.1 Flash 1017 (96.0 vs 96.0); research: SpaceXAI: Grok 4.7 (86.4 vs 83.5); documents & design: Claude Haiku 5.5 (83.1 vs 82.1).
How alternatives are chosen
- Scores — LiveBench release 2026-10-25. Only models with a published run are suggested on quality; a missing model means “not evaluated”, not “worse”.
- Prices — live list prices from OpenRouter, blended 3:1 input:output. Monthly figures price a RAG assistant with the published cached-input rate where there is one.
- Same job — suggestions must support every capability GPT-6.1 Sol has among tool calling and image input. Other listings of the same model (free or batch tiers) are variants, not alternatives, and are left out.
A few points on a public benchmark can hide large differences on your own tasks. Shortlist here, then decide with an eval — how to build one.