AI coding buying guide · updated Sep 26

Find the right AI model for coding.

One guide, three picks (top, value, and budget), chosen from public benchmarks and current prices. No lab pays for placement.

Backed by 189+ models, live pricing, and public benchmarks.

Top pick

Claude Fable 5

Anthropic · $10.00/1M

Value pick

GPT-5.6 Luna

OpenAI · $0.20/1M

Budget pick

DeepSeek · $0.05/1M

Top ranked

The 10 highest-ranked models on the LMRank leaderboard.
#	Model	Lab	Context	Input price
1	Claude Fable 5	Anthropic	1M	$10.00/1M
2	Claude Opus 4.8	Anthropic	1M	$5.00/1M
3	Claude Opus 4.7	Anthropic	1M	$5.00/1M
4	GPT-5.6 Sol	OpenAI	1.1M	$2.00/1M
5	Claude Opus 4.5	Anthropic	200K	$5.00/1M
6	GPT-5.5 Pro	OpenAI	1.1M	$30.00/1M
7	Claude Sonnet 5	Anthropic	1M	$2.00/1M
8	GPT-5.5	OpenAI	1.1M	$5.00/1M
9	GPT-5	OpenAI	400K	$1.25/1M
10	GPT-5.1	OpenAI	400K	$1.25/1M

The leading models in LMRank overall, ordered by leaderboard rank across the public benchmark mix.

The strongest models for code generation, refactoring, debugging, and multi-file edits, based on public coding benchmarks and LMRank ranking.

Models that pair strong capability with low listed input pricing. Pricing is compared at list price per million input tokens.

The best open-weight models available on OpenRouter, usable for self-hosting, fine-tuning, and local evaluation.

Models that support the largest context windows, ideal for long documents, codebases, and multi-turn workflows.

The lowest-latency variants from each provider (Flash, Turbo, Mini, and Instant models) for interactive apps.

Latest model additions and updates.
#	Model	Lab	Released
01	Ling 3.1 Flash	InclusionAI	Oct 2026
02	Nemotron 3.5 Super VL	NVIDIA	Oct 2026
03	X Xing4.0 29B A4B	XingChen AGI	Oct 2026
04	MiniMax M3.1 Flash	MiniMax	Oct 2026
05	U Pareto 26.10 Preview	Unbiased	Oct 2026