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BenchLM

Alternative Finder

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Find the best alternative to ChatGPT, Claude, Google Gemini, GLM, Kimi, or the OpenAI API using tracked benchmark performance, token pricing, context window size, and open-weight availability.

Finder inputs

BenchLM uses GPT-5.5 as the tracked OpenAI reference for ChatGPT-like performance.

Benchmarks last updated September 15, 2026. Token pricing and context are used to break ties and surface the strongest real-world replacements, not just the absolute benchmark leader.

Popular starting points

Best ChatGPT Alternatives in 2026

chatgpt alternatives

Best Claude Alternatives in 2026

claude alternative

Best Google Gemini Alternatives in 2026

google gemini alternative

Best OpenAI API Alternatives in 2026

openai api alternative

Best GLM Alternatives in 2026

glm alternative

Best Kimi Alternatives in 2026

kimi alternative

Best Free ChatGPT Alternatives in 2026

free chatgpt alternative

Best Open Source ChatGPT Alternatives in 2026

open source chatgpt alternative

Best Claude Alternatives for Coding in 2026

claude alternative for coding

Best current fit for ChatGPT

Qwen3.8 Max

88.5 BenchLM fit

Qwen3.8 Max is a strong ChatGPT alternative. It beats GPT-5.5 on BenchLM's general use score. Its blended token price is about 100% lower than GPT-5.5. It is also open-weight, so you can self-host or fine-tune it.

beats GPT-5.5 on general use benchmarks100% cheaper on blended token costopen-weight and self-hostable
1
Qwen3.8 MaxBest match

Alibaba · Open Weight · 1M context

Qwen3.8 Max is a strong ChatGPT alternative. It beats GPT-5.5 on BenchLM's general use score. Its blended token price is about 100% lower than GPT-5.5. It is also open-weight, so you can self-host or fine-tune it.

beats GPT-5.5 on general use benchmarks100% cheaper on blended token costopen-weight and self-hostable

BenchLM fit

88.5

Score vs ref

112%

Token cost

100% cheaper

Pricing unavailableCompare with GPT-5.5Model profile
2
Gemini 3.8 Flash

Google · Proprietary · 1M context

Gemini 3.8 Flash is a strong ChatGPT alternative. It beats GPT-5.5 on BenchLM's general use score. Its blended token price is about 87% lower than GPT-5.5.

beats GPT-5.5 on general use benchmarks87% cheaper on blended token cost1M context window

BenchLM fit

86.6

Score vs ref

109%

Token cost

87% cheaper

$0.75 in · $3.75 outCompare with GPT-5.5Model profile
3
Kimi K3

Moonshot AI · Pending · 1.05M context

Kimi K3 is a strong ChatGPT alternative. It beats GPT-5.5 on BenchLM's general use score. Its blended token price is about 49% lower than GPT-5.5. It adds a larger 1.05M context window than the tracked ChatGPT reference.

beats GPT-5.5 on general use benchmarks49% cheaper than ChatGPT1M context window

BenchLM fit

85.3

Score vs ref

116%

Token cost

49% cheaper

$3.00 in · $15.00 outCompare with GPT-5.5Model profile
4
Gemini 3.7 Flash

Google · Proprietary · 1M context

Gemini 3.7 Flash is a strong ChatGPT alternative. It beats GPT-5.5 on BenchLM's general use score. Its blended token price is about 87% lower than GPT-5.5.

beats GPT-5.5 on general use benchmarks87% cheaper on blended token cost1M context window

BenchLM fit

85.3

Score vs ref

106%

Token cost

87% cheaper

$0.75 in · $3.75 outCompare with GPT-5.5Model profile
5
Hy4 preview

Tencent · Open Weight · 1M context

Hy4 preview is a strong ChatGPT alternative. It retains about 99% of GPT-5.5's general use benchmark profile. Its blended token price is about 100% lower than GPT-5.5. It is also open-weight, so you can self-host or fine-tune it.

retains 99% of GPT-5.5's general use score100% cheaper on blended token costopen-weight and self-hostable

BenchLM fit

84.6

Score vs ref

99%

Token cost

100% cheaper

Self-host / free*Compare with GPT-5.5Model profile
6
Gemini 3.6 Flash

Google · Proprietary · 1M context

Gemini 3.6 Flash is a strong ChatGPT alternative. It beats GPT-5.5 on BenchLM's general use score. Its blended token price is about 75% lower than GPT-5.5.

beats GPT-5.5 on general use benchmarks75% cheaper than ChatGPT1M context window

BenchLM fit

84.2

Score vs ref

106%

Token cost

75% cheaper

$1.50 in · $7.50 outCompare with GPT-5.5Model profile

Check the tradeoff before switching

The finder answers a narrower question than “what is the best model?”: which replacement keeps enough quality for your workload without breaking the budget or context limit. Open a direct comparison, pricing row, and model profile before changing providers.

Track model shifts before your stack gets outdated

Benchmarks, pricing, and rankings move quickly. Get notified when a better alternative appears for your workflow.

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FAQ

How does BenchLM rank alternatives?

BenchLM scores alternatives from tracked benchmark performance first, then adjusts for token price, context window, and open-weight preference. The weighting shifts depending on whether you choose balanced fit, lower cost, open-weight, or coding performance.

Why does ChatGPT map to GPT-5.5 in this finder?

BenchLM tracks model families rather than closed chat products directly. For ChatGPT-like comparisons, the finder uses GPT-5.5 as the current OpenAI benchmark reference so the ranking stays grounded in measurable model data.

What does cheaper mean in the ranking?

Cheaper uses a blended token-cost estimate with 35% input price and 65% output price. That gives more weight to the output side because many production workflows spend more on generated tokens than prompt tokens.

Can this finder surface open-source or self-hosted options?

Yes. Set model type to open-weight only or switch the goal to open-weight first. That pushes self-hostable models higher and removes proprietary APIs when you want maximum control.